X2 6 2x student response a b 2 c 2 d 2

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Unformatted text preview: 2x Student Response A. B. {2} C. (-∞, -2) D. (2 , ∞) Score: 9. Provide an appropriate response. 4/4 Feedback Find the horizontal asymptote, if any, of the given function. f(x) = Student Response A. y = 3, y = -4 B. x = 2, x = -2 C. y = 1 D. None http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Feedback Page 4 of 12 Blackboard Learning System 4/14/09 4:45 PM Score: 10. 4/4 Solve the problem. Suppose that the cost C of removing p% of the pollutants from a chemical dumping site is given by C(p) = . Can a company afford to remove 100% of the pollutants ? Explain. Student Response A. Yes, the cost of removing p% of the pollutants is $400, which is certainly affordable. B. Yes, the cost of removing p% of the pollutants is $40,000, which is certainly affordable. C. No, the cost of removing p% of the pollutants increases without bound as p approaches 100. D. No, the cost of removing p% of the pollutants is $400, which is a prohibitive amount of money. Score: 11. 4/4 Feedback Find the equation of the tangent line to the curve when x has the given value. Find the equation of the tangent line to the graph of the function at the given value of x. f(x) = x2 + 5x at x = 4 Student Response A. B. y=y= x+ x+ Feedback C. y = 13x - 16 D. y = - 39x - 80 http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 5 of 12 Blackboard Learning System 4/14/09 4:45 PM Score: 12. 4/4 Provide an appropriate response. Obtain the difference quotient for the function for f(x) = Student Response A. B. C. D. Feedback 0/4 Score: 13. Use the definition f'(x) = f(x) = 4x + 4x3 to find the derivative at x. Student Response A. 4x + 12x 2 B. 4 + 12x 2 C. 4x + 12x 3 D. 4 + 4x2 Score: 14...
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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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