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Unformatted text preview: Blackboard Learning System 3/29/09 9:47 PM Your location: Assessments › View All Submissions › View Attempt View Attempt 1 of 5
Title: Started: Submitted: Time spent: Problem Set 4.4 March 15, 2009 10:45 PM March 15, 2009 11:51 PM 01:05:54 Total score adjusted by 0.0 Maximum possible score: 10 Total score: 7/10 = 70% Done 1. Provide an appropriate response. Write composite function in the form and Student Response A. y = f(u) = (2x4 + 3x + 1 )3and u = g(x) = u B. and Feedback C. y = f(u) = 2x4 + 3x + 1 and u = g(x) = u 3 D. y = f(u) = u and u = g(x) = (2x4 + 3x + 1) 3 Score: 2. Find the derivative. Find f'(x) for f(x) = (4x2 + 3x)2. Student Response A. f'(x) = 32x 3 + 36x 2 + 18x B. f'(x) = 64x 3 + 72x 2 + 18x C. f'(x) = 64x 3 + 36x 2 + 18x D. f'(x) = 32x 3 + 36x 2 + 9x Feedback 1/1 http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 1 of 5 Blackboard Learning System 3/29/09 9:47 PM Score: 3. 1/1 Find the equation of the tangent line to the graph of the given function at the given value of x. f(x) = (x 2 + 12) 3/4; x = 2 Student Response A. B. C. D. Score: 4. Provide an appropriate response. Find for . y= y= y= y= x + 11 x+5 x x+5 0/1 Feedback Student Response A. B. C. 2(10t  4) D. Score: 5. Provide an appropriate response. Find f'(x) for f(x) = log 6(x 4 + 1) 1/1 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 2 of 5 Blackboard Learning System 3/29/09 9:47 PM Student Response A. Feedback B. C. D. + 4x 3 1/1 Score: 6. Differentiate. f(x) = (5x + 7) 4 Student Response A. f'(x) = 4( 5x + 7) 3 B. f'(x) = 20( 5x + 7) 4 C. f'(x) = 20( 5x + 7) 3 D. f'(x) = 5( 5x + 7) 3 Score: 7. Solve the problem. 1/1 Feedback The total revenue from the sale of x stereos is given by Find the marginal average revenue, A'(x). Round numbers to the nearest thousandth, if necessary. Student Response A. A'(x) = 0.044  Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 3 of 5 Blackboard Learning System 3/29/09 9:47 PM B. C. D. A'(x) = 13.33 A'(x) = 13.33 A'(x) = 0.044 0/1 Score: 8. Solve the problem. If $8000 is invested at interest rate i, compounded quarterly, it will grow in 4 years to an amount A, in $, given by: A = 8000 16. Find the rate of change, . Student Response A. B. C. D. Score: 9. Provide an appropriate response. = 32,000 = 32,000 = 128,000 = 128,000 1/1
15 Feedback 16 15 16 What rule is applied first to find the derivative of the function f(x) = (2x2 + 2) ? http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 4 of 5 Blackboard Learning System 3/29/09 9:47 PM Student Response A. Quotient rule B. Power rule C. Square root rule D. Product rule Score: 10. 1/1 Feedback Write the function as the composition of two functions f and g such that y = f[g(x)]). y= + 10 Student Response A. B. C. D. f(x) = , g(x) = + 10 + 10 Feedback f(x) = x, g(x) = f(x) = , g(x) = 10 f(x) = x + 10, g(x) = 0/1 Score: Done http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 5 of 5 ...
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 Spring '09
 hamidy
 Calculus

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