0 Question 15 v Let A(a;) = f f(t)dt, with x) shown in the graph below. 0 At what x values does A(x) have a local max: x = At what x values does A(x) have a local min: x = Restrict your answers to values 0 2 Find (22 2 + +6vx dx 25 + C Check Answer0 Question 17 v Given the demand function D(p) = 3/ 325 3 , Find the Elasticity of Demand at a price of $18 At this price, we would say the demand is: 0 Elastic O Inelastic O Unitary Based on this, to increase revenue we should: O Raise Prices 0 Keep Prices Unchanged O Lower Prices Check Answer Question 18 A > Evaluate the indefinite integral. 6 dx + C Check Answer\fQuestion 20 6 y = f(x) 5 4 X 4 6 8 9 Enter each answer as a whole number (like -4, 0, or 253) or DNE for undefined or Does Not Exist. f(1) = lim f(x) = lim f (a) = 2-7+ lim f(x) =0 Question 21 v For the given cost function C(32) = 40000 + 7003: + :32, First, find the average cost function. Use it to find: a) The production level that will minimize the average cost as =l l b) The minimal average cost $l l Check Answer Question 21 For the given cost function C(c) = 48400 + 4001 + 1- First, find the average cost function. Use it to find: a) The production level that will minimize the average cost b) The minimal average cost Check Answer((x ) : 48400 +400 x+x Average cost function = ((x ) X A(X ) : 48400 - + 400 + X X A ' ( 1 ) : - 48400. +1 : 0 X 2 n: 4840 0 * = 148400 : 220 A " ( * ) = 4 1 2 ) 48400 A" ( 220) 20 ( Minimum ) 1( 220 ). 4840 0 twooy 220 220 = 840 a ) The production level That will minimite the average cost X = 220 b ) The minimal average cost 1840