0 Question 12 v Suppose that 3:4 + y4 = 82. d (1) Use the method of implicit differentiation to find dy' :1: =' do: {2) Find the equation of the tangent line at the point (m, y) = (3, 1). The equation is y = ' Check Answer 0 Question 13 v Speedometer readings for a vehicle {in motion) at 8-second intervals are given in the table. t (sec) v (ftis) 0 25 8 28 16 17 24 31 32 26 40 24 Estimate the distance traveled by the vehicle during this 40-second period using the velocities at the beginning of the time intervals. distance traveled m feet Give another estimate using the velocities at the end of the time periods. distance traveled 3 feet Check Answer 0 Question 14 v Evaluate the definite integral by interpreting it in terms of areas. -/:(5:I: 25)da: \\ Check Answer 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