Spring 2023 Mat ... Study Guide.pdf Open with Google Docs PDF Sprin ... e.pdf Open with Google Docs 4 . .. Math 1 12 Spring 20 49. Determine the vertex for the quadratic function g (x) = -2(x + 8) (x - 2). 79. Use the graph to determine all the real zeros of P(x) = x3 + 5x2 - 4x - 20. The smallest real zero is: PM (A) (6, -112) (B) (-6, 32) (C) (-3, -25) (A) x =-4 (B) x =-5 (C) x =-2 (D) (3, -22) (E) (-3, 50) (D) x =2 (E) x =4 50. A mathematical model for the profit, P, in thousands of dollars, that a company makes in one 80. Determine all the real zeros of g(x) = - = (x + 12)(x + 3)(x - 6). The largest real zero is: PM year from producing x units of its product is: (A) x = = = (B) x = -12 (C) x = 12 P(x) = -x2 +600x - 89,750. (D) x=-6 (E) x = 6 What is the maximum profit the company can make? AM (A) $200,000 81. Determine all the real zeros of h(x) = 2(x + 3)(x2 - 4x - 4). The largest real zero is: (B) $250,000 (C) $275,000 (A) x = 4+2v2 (B) x = 4+4v2 (C) x =2+4V2 $300,000 (D) x =2+2v2 (E) $325,000 (E) None of these AM 51. A ball is thrown from a height of 72 feet. Its position above the ground is given by the formula 82. Consider the polynomial function f(x) = x3 + 2x2 + 4x + 8. Which one of the following h(t) = -16t2 + 29t + 72, where t is measured in seconds. Determine how long it takes for statements is FALSE? the ball to strike the ground (A) -2 is a zero of f (x) The time until the ball strikes the ground is: (B) f(x) has only one real zero AM (C) The end behavior of the graph is f(x) approaches -co as x approaches -co and f (x) (A) More than 4.1 seconds approaches co as x approaches co (B) Between 3.6 and 4.1 seconds C) Between 3.1 and 3.6 seconds (D) The y-intercept of the graph is (0, 8) (D) Between 2.6 and 3,1 seconds (E) x - 2 is a factor of f (x) (E) Less than 2.6 seco Page 20 / 33 + Page 28 / 33 MAR 2 5