Ap calc bc 2019 frq answers

CALCULUS BC FREE-RESPONSE QUESTIONS. The graphs of the polar curves r = 4 and r = 3 + 2 cos. p 5p. at q = and q = . 3 3. (a) Let R be the shaded region that is inside the graph of. q are shown in the figure above. The curves intersect. r = 4 and also outside the graph of r = 3 + 2 cos q , as shown in the figure above.

Ap calc bc 2019 frq answers. Write your solution to each part in the space provided for that part. 6. Consider the curve given by the equation 6xy y. = 2 + . dy y. (a) Show that 2 . dx = y2 − 2x. (b) Find the coordinates of a point on the curve at which the line tangent to the curve is horizontal, or explain why no such point exists.

It is known that the point (3, 3 — N/S) is on the graph off. (a) If J f (x) clx = 7, find the value off f (x) dx. Show the work that leads to your answer. (2f'(x) + 4) dr. (b) Evaluate (c) The …

Sample: 2A. Score: 9. The response earned 9 points: 2 points in part (a), 2 points in part (b), and 5 points in part (c). In part (a) the response earned the first point with the radical expression on the second line. Note that the response continues by simplifying and rounding correctly to the boxed answer of 1.271.Non-fungible tokens may be revolutionizing the way we own and transact with digital assets in the 21st century, but they’re no different than old-school physical assets in one impo...Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at [email protected]. The ...BCS: Get the latest Barclays PLCShs American Deposit.Receipts Repr.4 Shs stock price and detailed information including BCS news, historical charts and realtime prices. Indices Com...The title captures it all. In this video, I narrate my thoughts through the AP Calculus BC 2019 Free Response question 2. I highlight some key concepts for a...

Watch as Sal solves free response questions from past AP Calculus exams. This is a good preparation for your upcoming exam!Part A (AB or BC): Graphing Calculator Required. 0 ≤ t ≤ 12, where R(t) is measured in vehicles per hour and t is the number of hours since 7:00 a.m. (t = 0). Values of R(t) for selected values of t are given in the table above. Use the data in the table to approximate Rʹ(5). Show the computations that lead to your answer.Write your solution to each part in the space provided for that part. 6. Consider the curve given by the equation 6xy y. = 2 + . dy y. (a) Show that 2 . dx = y2 − 2x. (b) Find the coordinates of a point on the curve at which the line tangent to the curve is horizontal, or explain why no such point exists.For Part B, fill in only the circles for numbers 76 through 90 on the answer sheet. Because Part A and Part B offer only four answer options for each question, do not mark the (E) answer circle for any question. The survey questions are numbers 91 through 94. Indicate all of your answers to the multiple-choice questions on the answer sheet.AP ® CALCULUS AB/CALCULUS BC . 2019 SCORING GUIDELINES . Question 1 (a) 5 . Et d t 153.457690 . 0 . To the nearest whole number, 153 fish enter the lake from midnight to 5 . A. M. 1 2 : : integral 1 : answer (b) 1 . 5 . 50 Lt d t 6.059038 . 0 . The average number of fish that leave the lake per hour from midnight to 5 . A. M. is 6.059 fish per ...

®CALCULUS BC 2019 SCORING GUIDELINES AP Question 5 (a) 2x 2 fxc 2x 2 2xk f c0 2 6 2 11 2 k k k 3 3 ­ 1 : denominator of f c x 3 : ® 1 : fxc °¯ 1 : answer (b) 1 1 AB x2 2x 8 x 4 2 4 2 1 Ax 2 B x 4 11 A , B 6 6Solving all six of the FRQs from the 2022 AP Calculus BC exam in one stitched together video. Trying to see if people prefer this!00:00 FRQ #108:29 FRQ #213...AP® CALCULUS AB/CALCULUS BC 2014 SCORING GUIDELINES. Grass clippings are placed in a bin, where they decompose. For 0 ≤ t ≤ 30, the amount of grass clippings remaining in the bin is modeled by A ( t ) = 6.687 ( 0.931 ) t , where A ( t ) is measured in pounds and t is measured in days. Find the average rate of change of A ( t ) over the ...AP® Calculus AB Scoring Statistics 2019 Free-Response Questions. Question. Mean. Standard Deviation. Number of Possible Points. 3.70. 2.25.

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The AP Calculus BC Exam has consistent question types, weighting, and scoring guidelines every year, so you and your students know what to expect on exam day. Section I: Multiple Choice. 45 Questions | 1 Hour 45 minutes | 50% of Exam Score. Part A: 30 questions; 60 minutes (calculator not permitted). Part B: 15 questions; 45 minutes (graphing ...The AP Calculus BC paper consists of 2 sections and the format is exactly the same as for the AB exam: Section I multiple choice - 45 questions | 105 minutes | worth 50% of the …2019 AP Calculus AB & AP Calculus BC Exam Free Response Question #3Working with a graph; definite integral; sum or difference of definite integrals; definite...Meet an AP®︎ teacher who uses AP®︎ Calculus in his classroom. 3:26. Bill Scott uses Khan Academy to teach AP®︎ Calculus at Phillips Academy in Andover, Massachusetts, and he’s part of the teaching team that helped develop Khan Academy’s AP®︎ lessons. Phillips Academy was one of the first schools to teach AP®︎ nearly 60 years ago.AP® CALCULUS AB/CALCULUS BC 2014 SCORING GUIDELINES. Grass clippings are placed in a bin, where they decompose. For 0 ≤ t ≤ 30, the amount of grass clippings remaining in the bin is modeled by A ( t ) = 6.687 ( 0.931 ) t , where A ( t ) is measured in pounds and t is measured in days. Find the average rate of change of A ( t ) over the ...Turns out getting to the patient is more expensive than curing them. The World Health Organization reportedly spent more money last year on traveling around the globe, than they di...

AP Calculus AB Practice Exams Free Response Notes Videos Study Guides. We have links to the best online AP Calculus practice exams. These free resources provide thousands of challenging practice questions to work through. Choose from the listing below to get started with your AP Calc AB test prep! Sample: 3C. Score: 3. The response earned 3 points: no points in part (a), no points in part (b), 2 points in part (c), and 1 point in part. (d). In part (a) the property of definite integrals that is required is not stated, so the first point was not earned. AP Calculus 2019 AB FRQ Solutions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 18, 2019 1 Problem 1 1.1 Part a Because sh enter the lake at the rate E(t) = 20 + 15sin ˇt 6, with tin hours after midnight, the number, F, of sh that enter the lake over the 5-hour period from t= 0 to t= 5, is ...1. According to the model, 270 people enter the line for the escalator during the time interval 0 ≤ t ≤ 300. 300. t = 300 is 80. = 414.286 (or 414.285) seconds. The number of people in line is a minimum at time t = 33.013 seconds, when there are 4 people in line.The College Board has released free-response questions from 1998 to 2019. That's over twenty years worth of free-response questions! However, focus most on recent questions (within the past three years is best), as …Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2. A particle moving along a curve in the xy-plane is at position ( x ( t ) , y ( t ) ) at time t 0 . The particle moves in.May 23, 2019 · Official 2019 answer keys will eventually go online right here, along with the ones from past years that have already been posted. You can view the 2019 AP Calculus BC Free Response Questions right here. All of the 2019 answer keys that my students created can be viewed right here. All of their 2019 video solutions can be viewed right here. Here's my own PDF solutions for the released 2023 AP exams for AP Calculus, Statistics, and Physics. If you're looking for help in AP Physics 1, check out a new course I've put together here AP Statistics PDF SolutionYouTube SolutionsFRQ #1 FRQ #2 FRQ #3FRQ #4FRQ #5 FRQ #6AP Calculus ABPDF Solution (AB)PDF Solution (BC) …If you are planning to invest, there’s no better place to look for high-quality growth stocks than the portfolio of Cathie Wood, the founder of Ark Invest. Get top content in our f...3 Problem 3 3.1 Part a We have f0(0) = 0, because the tangent line at x= 0is given horizontal.From the formula given for the derivatives, we have f00(0) = ( 1)3 3! 52 12 6 25 <0: (15) By the Second Derivative Test, fhas a local maximum at x= 2.45 Questions | 1 Hour 45 minutes | 50% of Exam Score. Part A: 30 questions; 60 minutes (calculator not permitted). Part B: 15 questions; 45 minutes (graphing calculator required). Questions include algebraic, exponential, logarithmic, trigonometric, and general types of functions. Questions include analytical, graphical, tabular, and verbal ...In part (d) the response earned the point by providing the correct answer. AP. Calculus BC 2021 Scoring Commentary. Question 6 (continued) Sample: 6C Score: 3. The response earned 3 points: 1 point in part (a), 1 point in part (b), 1 point in part (c), and no points in part (d). In part (a) the response did not earn the first point because the ...

AP Calculus BC 2001 Scoring Guidelines. The materials included in these files are intended for non-commercial use by AP teachers for course and exam preparation; permission for any other use must be sought from the Advanced Placement Program. Teachers may reproduce them, in whole or in part, in limited quantities, for face-to-face teaching ...

13.2. 9.7. 4.2. The following comments on the 2019 free-response questions for AP® Calculus AB and Calculus BC were written by the Chief Reader, Stephen Davis of Davidson College. They give an overview of each free-response question and of how students performed on the question, including typical student errors. Time—30 minutes. Number of questions—2. A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. A tank has a height of 10 feet. The area of the horizontal cross section of the tank at height h feet is given by the function A, where A h is measured in square feet. The function A is continuous and decreases as h. ()The AP Calculus BC paper consists of 2 sections and the format is exactly the same as for the AB exam: Section I multiple choice - 45 questions | 105 minutes | worth 50% of the exam score. Part A: 28 questions, 55 minutes (non calculator) Part B: 17 questions, 50 minutes (calculator) Section II free response - 6 questions | 90 minutes | worth ...CALCULUS BC SECTION II, Part A. A graphing calculator is required for these problems. 20 1. Water is pumped into a tank at a rate modeled by W t 2000 e liters per hour for 0 t 8, where t is measured in hours. Water is removed from the tank at a rate modeled by R t liters per hour, where R is differentiable and decreasing on 0 t 8.From the same inquisitive mind that brought us the sandwich price calculator comes another elegant, eye-opening tool to determine the real cost of cocktails Punch in your poison an...Scoring. This question is scored in three sections . Section 1 consists of part (a); Section 2 consists of the outlier determination in part (b); Section 3 consists of the boxplot sketch in part (b) and part (c). Each section is scored as essentially correct (E), partially correct (P), or incorrect (I). Section 1.CALCULUS BC SECTION II, Part A. A graphing calculator is required for these problems. 20 1. Water is pumped into a tank at a rate modeled by W t 2000 e liters per hour for 0 t 8, where t is measured in hours. Water is removed from the tank at a rate modeled by R t liters per hour, where R is differentiable and decreasing on 0 t 8.Note: Some questions and scoring guidelines from the 2023 and earlier AP U.S. Government and Politics Exams may not perfectly align with the course and exam updates that take effect in the 2023-24 school year. These questions remain available because teachers say that imperfectly aligned questions still provide instructional value.Answers (numeric or algebraic) need not be simplified. Answers given as a decimal approximation should be correct to three places after the decimal point. Within each individual free-response question, at most one point is not earned for inappropriate rounding. ( ) 0 60 90 120 135 150 (seconds) 0 0.1 0.15 0.1 0.05 0 (gallons second) per. t ft

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AP® Calculus BC 2004 Scoring Guidelines. The materials included in these files are intended for noncommercial use by AP teachers for course and exam preparation; permission for any other use must be sought from the Advanced Placement Program®. Teachers may reproduce them, in whole or in part, in limited quantities, for face-to-face …Consider the differential equation 1. dy y dx. =− Let yfx=()be the particular solution to this differential equation with the initial condition f()10.= For this particular solution, fx()< 1 for all values of x. (a) Use Euler’s method, starting at 1x= with two steps of equal size, to approximate f()0.FREE-RESPONSE SOLUTIONS ~ 2015 AB 7 Question AB-5 (a) f has a relative maximum at x = –2, because f ′(x) changes sign from positive to negative there. (b) For the graph of f to be concave down, f ′ must be decreasing. For f to be decreasing, f ′ must be negative. These two conditions together are met on the intervals −<<−21x and 13<x < . (c) The …Give students approximately 3 minutes to answer the survey questions. 2018-19 AP Exam Instructions. 46 AP Calculus AB/BC Exams Then say: Close your booklet and put your …BuzzFeed revealing the identities of these NFT tycoons wasn't doxxing—it was journalism On Feb. 4, BuzzFeed published an article that revealed the identities of two of the most inf...Sample: 3C. Score: 3. The response earned 3 points: no points in part (a), no points in part (b), 2 points in part (c), and 1 point in part. (d). In part (a) the property of definite integrals that is required is not stated, so the first point was not earned.May 23, 2019 ... 2019 AP Calculus BC Free Response Question 6 Solution [Student]. 150 views · 4 years ago ...more. Try YouTube Kids. An app made just for kids.Visit the College Board on the Web: www.collegeboard.org. AP Central is the oficial online home for the AP Program: apcentral.collegeboard.org. 1. 300 (a) ∫ r ( t ) dt = 270. 0. According to the model, 270 people enter the line for the escalator during the time interval 0 ≤ t ≤ 300. (b) 20 + ∫ ( 300 ( 300.Besides the complete practice test, the only official AP Calculus BC multiple choice practice questions are found in the AP Calculus Course and Exam Description. Beginning on page 228 there are 22 multiple-choice questions you can use to practice. The questions include answers and the major skills each question tests.Answers (numeric or algebraic) need not be simplified. Answers given as a decimal approximation should be correct to three places after the decimal point. Within each individual free-response question, at most one point is not earned for inappropriate rounding. ( ) 0 60 90 120 135 150 (seconds) 0 0.1 0.15 0.1 0.05 0 (gallons second) per. t ftEloise Theisen is an adult geriatric nurse practitioner with more than two decades of experience in nursing, including 14 years of oncology at John Muir Health in Walnut Creek, Cal...Download free-response questions from past AP U.S. Government and Politics exams, along with scoring guidelines, sample responses, and scoring distributions. ….

Give students approximately 3 minutes to answer the survey questions. 2018-19 AP Exam Instructions. 46 AP Calculus AB/BC Exams Then say: Close your booklet and put your answer sheet on your desk, faceup. Make sure you have your AP number label and an AP Exam label on page 1 of your answer sheet. The AP Calculus BC Exam has consistent question types, weighting, and scoring guidelines every year, so you and your students know what to expect on exam day. Section I: Multiple Choice. 45 Questions | 1 Hour 45 minutes | 50% of Exam Score. Part A: 30 questions; 60 minutes (calculator not permitted). Part B: 15 questions; 45 minutes …May 23, 2019 · Official 2019 answer keys will eventually go online right here, along with the ones from past years that have already been posted. You can view the 2019 AP Calculus BC Free Response Questions right here. All of the 2019 answer keys that my students created can be viewed right here. All of their 2019 video solutions can be viewed right here. 20.051 pounds of bananas are removed from the display table during the first 2 hours the store is open. (b) f ′ ( 7 ) = − 8.120 (or − 8.119 ) After the store has been open 7 hours, the rate at which bananas are being removed from the display table is decreasing by 8.120 (or 8.119) pounds per hour per hour. (c) g ( 5 ) − f ( 5 ) = − 2. ...apcentral.collegeboard.org. 2019 AP®CALCULUS AB FREE-RESPONSE QUESTIONS CALCULUS AB. SECTION II, Part A. Time—30 minutes. Number of questions—2. A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. Fish enter a lake at a rate modeled by the function E given by. p t Et. Watch as Sal solves free response questions from past AP Calculus exams. This is a good preparation for your upcoming exam! AP Calculus 2018 BC FRQ Solutions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 22, 2018 1 Problem 1 1.1 Part a During the time interval 0 t 300, Z 300 0 r(t)dt= 44 Z 300 0 t 100 3 1 t 300 7 dt= 270 (1) people enter the line for the escalator. (Fortunately, the problem is calculator active ...Bored Apes Yacht Club maker Yuga Labs announced Friday that they have acquired the rights to the CryptoPunks and Meebits NFT collections from creator Larva Labs. Bored Apes and Cry... Ap calc bc 2019 frq answers, Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2023 College Board. 5. The graphs of the functions f and g are shown in the figure for 12. 0 £ x £ 3. It is known that g(x) =. 3 + x. for x ., The title captures it all. In this video, I narrate my thoughts through the AP Calculus BC 2019 Free Response question 2. I highlight some key concepts for a..., 2019 AP ® CALCULUS AB FREE-RESPONSE QUESTIONS . 4. A cylindrical barrel with a diameter of 2 feet contains collected rainwater, as shown in the figure above. The . water drains out through a valve (not shown) at the bottom of the barrel. The rate of change of the height . h . of . the water in the barrel with respect to time . t . is modeled ..., 2019 AP Calculus BC Exam Free Response Question #2Polar question! polar area; average value of a function; dividing a region into two parts; a weird limit q..., AP Calculus BC 2001 Scoring Guidelines. The materials included in these files are intended for non-commercial use by AP teachers for course and exam preparation; permission for any other use must be sought from the Advanced Placement Program. Teachers may reproduce them, in whole or in part, in limited quantities, for face-to-face teaching ..., AP Calculus BC 2019 Free Response Questions - Complete Paper (pdf) AP Calculus BC 2019 Free Response Question 1. Rate in, rate out problem. Integral of a rate; average …, This problem incorporates the following Mathematical Practices: Practice 1: Implementing Mathematical Processes, Practice 2: Connecting Representations, and Practice 4: Communication and Notation. Question 6 (continued) Sample: 6A Score: 9. The response earned 9 points: 2 points in part (a), 2 points in part (b), 2 points in part (c), and 3 ..., The figure above shows a portion of the graph of f, consisting of two line segments and a quarter of a circle centered at the point (5, 3). It is known that the point (3, 3 — N/S) is on the graph off. (a) If J f (x) clx = 7, find the value off f (x) dx. Show the work that leads to your answer. , 13.2. 9.7. 4.2. The following comments on the 2019 free-response questions for AP® Calculus AB and Calculus BC were written by the Chief Reader, Stephen Davis of Davidson College. They give an overview of each free-response question and of how students performed on the question, including typical student errors., AP Calculus 2019 AB FRQ Solutions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 18, 2019 1 Problem 1 1.1 Part a Because sh enter the lake at the rate E(t) = 20 + 15sin ˇt 6, with tin hours after midnight, the number, F, of sh that enter the lake over the 5-hour period from t= 0 to t= 5, is ... , Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2023 College Board. 5. The graphs of the functions f and g are shown in the figure for 12. 0 £ x £ 3. It is known that g(x) =. 3 + x. for x ., Sample: 4B. Score: 6. The response earned 6 points: 2 points in part (a), no points in part (b), and 4 points in part (c). In part (a) the response earned the first point with the presentation of a correct expression for the derivative of V with respect to t, dV r2 dh , while handling r as a constant. , VANCOUVER, BC, Oct. 27, 2020 /CNW/ - Genome British Columbia (Genome BC) is thrilled to congratulate two BC-led teams for their projects designed ... VANCOUVER, BC, Oct. 27, 2020 /..., AP Classroom is a free and flexible online platform that provides instructional resources for each AP course to support student learning of all course content and skills. AP Classroom r esources, including AP Daily videos, help your students learn and practice all year. Learn about all instructional resources in AP Classroom. , The AP Calculus BC paper consists of 2 sections and the format is exactly the same as for the AB exam: Section I multiple choice - 45 questions | 105 minutes | worth 50% of the exam score. Part A: 28 questions, 55 minutes (non calculator) Part B: 17 questions, 50 minutes (calculator) Section II free response - 6 questions | 90 minutes | worth ..., AP® Calculus AB/BC 2021 Scoring Guidelines . Part A (AB or BC): Graphing calculator required Question 1 9 points . General Scoring Notes . Answers (numeric or algebraic) need not be simplified. Answers given as a decimal approximation should be correct to three places after the decimal point. Within each individual free-response question, at ..., The College Board. The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportunity. Founded in 1900, the College Board is composed of more than 5,700 schools, colleges, universities and other educational organizations. Each year, the College Board serves seven million students ..., 3 AP® CALCULUS AB/CALCULUS BC 2017 SCORING GUIDELINES Question 4 (a) H′(0 )− = 1 4 (91 16−27 )− =H ( )0 =91 An equation for the tangent line is y =91 −16 . t The internal temperature of the potato at time t =3 minutes is , The boxed answer 2 2 5 is correct, so the second point was earned. In part (c) the first point was earned with g x f x in line 2 on the left. The inclusion of “ 0 ” is not required to earn the point. The second point was earned in line 2 on the left with x 1 identified as a candidate., t 10, Bob’s velocity is modeled by B t. 3 2. 6 300, where t is measured in minutes and B t. is measured in meters per minute. Find Bob’s acceleration at time t 5. (d) Based on the model B from part (c), find Bob’s average velocity during the interval 0 t 10. dy. 4. Consider the differential equation., Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at [email protected]., Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2. A particle moving along a curve in the xy-plane is at position ( x ( t ) , y ( t ) ) at time t 0 . The particle moves in., apcentral.collegeboard.org. 2019 AP®CALCULUS BC FREE-RESPONSE QUESTIONS. CALCULUSBC SECTION II, Part A. Time—30 minutes. Number of questions—2. A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. Fish enter a lake at a rate modeled by the function E given by. p t. , 45 Questions | 1 Hour 45 minutes | 50% of Exam Score. Part A: 30 questions; 60 minutes (calculator not permitted). Part B: 15 questions; 45 minutes (graphing calculator required). Questions include algebraic, exponential, logarithmic, trigonometric, and general types of functions. Questions include analytical, graphical, tabular, and verbal ..., AP® Calculus BC Scoring Statistics 2019 Free-Response Questions. Question. Mean. Standard Deviation. Number of Possible Points. 5.14. 2.20., 1. Let R be the region in the first and second quadrants bounded above by the graph of y 20. 1 x 2 and. + below by the horizontal line y 2. =. Find the area of R. Find the volume of the solid generated when R is rotated about the x-axis. The region R is the base of a solid. For this solid, the cross sections perpendicular to the., Part A (AB or BC): Graphing Calculator Required. 0 ≤ t ≤ 12, where R(t) is measured in vehicles per hour and t is the number of hours since 7:00 a.m. (t = 0). Values of R(t) for selected values of t are given in the table above. Use the data in the table to approximate Rʹ(5). Show the computations that lead to your answer. , AP® Calculus AB Scoring Statistics 2019 Free-Response Questions. Question. Mean. Standard Deviation. Number of Possible Points. 3.70. 2.25., The title captures it all. In this video, I narrate my thoughts through the AP Calculus BC 2019 Free Response question 2. I highlight some key concepts for a..., The College Board is a mission-driven not-for-profit organization that connects students to college success and opportunity. Founded in 1900, the College Board was created to expand access to higher education. Today, the membership association is made up of more than 6,000 of the world’s leading educational institutions and is dedicated to ..., 2019 AP ® CALCULUS AB FREE-RESPONSE QUESTIONS . 4. A cylindrical barrel with a diameter of 2 feet contains collected rainwater, as shown in the figure above. The . water drains out through a valve (not shown) at the bottom of the barrel. The rate of change of the height . h . of . the water in the barrel with respect to time . t . is modeled ..., AP ® CALCULUS AB FREE-RESPONSE QUESTIONS CALCULUS AB SECTION II, Part A Time—30 minutes . Number of questions—2 . A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. People enter a line for an escalator at a rate modeled by the function r given by ⎧ ⎪ t t. 3 7 ⎪⎪ 44 1 for 0 ££ t ⎪ ()(rt ()=⎨ 100 300− ) 300 ... , Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at [email protected]. The ...