5. Which graph represents the function f(x) = x + - a. -4 -2 0 2 4 2 -4 4 x -2 N b. d. N -4 -2 0 2 4 26 -4 -2 0 2 4 6. Find the critical point for the function (x) = X + 1 ' (-1, 0) C. (0, 0) b. (1, 0.5) d. no critical point 7. Find f"(x) if A(x) = x2 + - a. 2+ C. 2+ 3 2x2 ~ b. 2+ 3 d. 2- 23 x XS 8. Find f"(x) if f(x) = "x. a. b. d. m3 x 9. If S = x+ y and xy = 225, find the values of x and y that minimize S. a. x = 10, y =22.5 x = 45, y = 5 b. x = 15, y = 15 d. x =9, y = 25 10. If P = xy and x + 2y = 100, find the values of x and y that maximize P. x = 50, y = 25 C. x = 30, y = 35 b. x = 20, y = 40 d. x =0, y = 504. Which graph represents the function /(x) = - 1 a. C. 12 4 2 -4 -2 0 2 4 X -4 0 4 X N b. d. 12 -4 -2 0 2 4 x -4 2 0 2 4 x -2Knowledge and Understanding Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Determine the number of local extrema for the graph ofx). a. 5 c. 3 b. 4 d. 2 2. Find the absolute minimum of the function x) - x-I-i on the interval 0 (x S 2. a. 0 c. 2 b. l d. 2.5 3. Find the slope of the tangent to the graph of x) - x[1 - x\") at its point of inection. a. 1 3 b. l d. l