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Multiple Choice questions ( Knowledge) ( 2 marks each) 1. Which of the following expresses ~8 x ~ 32 in simplest form? a. 2 / 64 C. 81/2 b. 16 d. 4 8 2. How many times does the graph of the function /(x) - 18x + 12x + 2 intersect the x-axis? a. None c. Two times b. One time d. More than two times 3 What is the value of the discriminant for the function f(x) - 8x + 13x + 7? a. -68 c. 0 b. -55 d. 393 What do the parabolas /(x) - 5x - 70x + 234 and g(x) - - - X' + 7x- have in common? a. They have the same y-intercept. b. . They have the same x-intercepts. They have the same axis of symmetry. d. They both open up. 5 What are the domain and range of the function d(x) - 5(x - 9) - 32? a. Range - ( E R ) 20) c. Domain - (X E R] b. Range = () = R |y2- 842) Domain - (X R) d. Domain - (X E R) Range - () E R |y 2 - 32) Range - () = R) 6 What is the minimum value for the function /(x) - 4x - 8x + 16? a. -12 b. C. 12 d. 16