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MAT 2160 NAME SECTION 11.2 Solve the following. Make sure to show your work to receive credit, 1. Find y' when y (x2+ 4) 100. 100 ( x 2 + 4 ) 94 100 ( x2 + 4) 99 ( 2x) 2. Suppose D(x) = 100 - Vx2 + 20 is a demand equation for a manufacturer's product. a) Find the rate of change of D(x) with respect to x. b) Find the marginal-revenue function