# 3.4 - Blackboard Learning System 4/14/09 4:43 PM Your...

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Unformatted text preview: Blackboard Learning System 4/14/09 4:43 PM Your location: Assessments › View All Submissions › View Attempt View Attempt 1 of 5 Title: Started: Submitted: Time spent: Problem Set 3.4 February 15, 2009 5:39 PM February 15, 2009 6:44 PM 01:04:50 Total score adjusted by 0.0 Maximum possible score: 10 Total score: 9/10 = 90% Done 1. Find average rate of change for the function over the given interval. Find the average rate of change of y with respect to x if x changes from 3 to 5 in the function Student Response A. 11 B. 22 C. 9 D. 4 Score: 2. 1/1 Feedback Find average rate of change for the function over the given interval. y = 3x3 - 7x2 + 1 between x = -6 and x = -4 Student Response A. B. 298 C. - Feedback D. - 149 Score: 3. Provide an appropriate response. http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 1 of 4 1/1 Blackboard Learning System 4/14/09 4:43 PM Find the slope of the line tangent to the graph of the function at the given value of x. y = x4 + 2x3 + 2x + 2 at x = -3 Student Response A. -50 B. -52 C. 67 D. 65 Score: 4. Provide an appropriate response. Find the slope of the graph f(x) = -x2 + 3x at the point (1, 2). Student Response A. 1 B. -1 C. -2 D. 2 Score: 5. Provide an appropriate response. Obtain the difference quotient for the function for f(x) = . 1/1 Feedback 1/1 Feedback Student Response A. B. C. D. Score: 6. Feedback - 0/1 http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 2 of 4 Blackboard Learning System 4/14/09 4:43 PM Use the definition f'(x) = f(x) = 8 - 8x2 to find the derivative at x. Student Response A. -16x B. 8 - 8x C. -16x 2 D. 8 - 16x Score: 7. Use the definition f'(x) = f(x) = 7x - 5 1/1 Feedback to find the derivative at x. Student Response A. -7 B. 7x C. 7 D. 2 Score: 8. 1/1 Feedback Find the average rate of change for the function over the given interval. y= between x = 2 and x = 8 Student Response A. B. 2 C. 7 D. Score: 1/1 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 3 of 4 Blackboard Learning System 4/14/09 4:43 PM 9. Find the instantaneous rate of change for the function at the given value. s(t) = 3t 2 + 5t - 7 at t = -2 Student Response A. 1 B. -1 C. -17 D. -7 Score: 10. Solve the problem. The total cost to produce x handcrafted wagons is Find the rate of 1/1 Feedback change of cost with respect to the number of wagons produced (the marginal cost) when Student Response A. \$376 per wagon B. \$1024 per wagon C. \$476 per wagon D. \$1124 per wagon Score: 1/1 Feedback Done http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 4 of 4 ...
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## This note was uploaded on 04/21/2009 for the course MATH 121 taught by Professor Hamidy during the Spring '09 term at Miramar College.

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