AP Calculus AB Review Q1Test 1 (2012-13) Mathematician _________________________ Date _______________ Period _________ 50 Point Total CALCULATOR ACTIVE -------------------------------------------------------------------------------------------------------------------------------------------(12 points) 1. A bucket containing 5 gallons of water has a leak. After t seconds, there are Q (t ) 51 2 t gallons of 25 water in the bucket. (Show work and label answers.) 5 pts a) Find the average rate of change for the time interval [5, 5.1]. Why is the rate negative? 4 pts b) Find a better estimation of the instantaneous rate of change at t = 5 seconds. 3 pts c) In words, describe the instantaneous rate of change. What concept in calculus is this called? (5 points) 2. The coordinates s of a moving body for various values of t are given. Estimate the velocity of the body at time t = 1.7. (Show work and label answers.) t (sec) 1.1 1.3 1.5 1.7 1.9 2.1 s (ft) 12 15 21 23 24 25 ----------------------------------------------------------------------------------------------------------------------------- --------------(13 points) 3. The graph provided shows the velocity of a car moving along a track. 4 pts a) Estimate the distance the car covered over the first 6 seconds. (Show your method and explain your answer thoroughly.) 1 pt b) What name is given to this calculus concept? 4 pts c) From the graph, estimate the instantaneous rate of change of the velocity at time t = 6 seconds. (Show you method and explain your answer thoroughly.) 1 pt d) What special name is given to the rate of change of velocity? 3 pts e) Was the car speeding up or slowing down at time t = 6 seconds? How can you tell? (6 points) 4. Tell whether the function is increasing, decreasing or not changing at x = a, b and c. If it is increasing or decreasing, tell whether the rate of change is slow, fast or none. a) x = a _______________ _______________ b) x = b _______________ _______________ c) x = c _______________ _______________ -------------------------------------------------------------------------------------------------------------------------------------------(5 points) 5. The data in the table below shows the velocity of a body at various values of time t. Estimate the distance covered over the 10 second period using trapezoids. (Show work and label answer clearly.) t (sec) 0 2 4 6 8 10 vel (ft/sec) 0 10 14 15 17 14 ----------------------------------------------------------------------------------------------------------------------------- --------------(4 points) 6. If the trapezoidal rule were applied to the graph of y be an underestimate or overestimate? Justify your answer. x 2 2 x 5 on the interval [0, 3], would the result Are you ready for calculus? 7. Find the equation of a line that has a slope of 5 and passes through the point (3, -4). 8. Find the equation of the line that passes through the points (4,1) and (3, -2). 9. Find the equation of the line that passes through theh points (-2,1) and is parallel to the line 4x + 2y = -1. 10. Find the equation of the line that passes through the origin and is perpendicular to the line 3x + 4y = -7. 11. Write the equation for the following graphs: 12. Given the slope sketch the following lines: a. Sketch a line with a slope of 2. b. Sketch a line with c. Sketch a line with a slope of 1 2 a slope of -2. d. Sketch a line with a slope of - 1 2 .