Initials: Multiple Choice (1 mark each) Write the block capital letter corresponding to the best choice on the blank in front of each question. 1. What is the x-intercept of f (x) = = 2x + 4 -? A) There is no x-intercept C) -2 B) D) 0 Ni 2. Which graph represents the function f (x) = _ -5? x - 9 A. C. 20- 12 16 20 -16 16- -20 + B. D. -10 -16 -12- 3. Which function has a point of discontinuity at x=3? x+3 x-3 A) S ( x) = 2 -6x+9 C) f ( x ) = - x2 -6.x -12 B) S ( x ) = = x+3 D) S(x) = = x-3 x2 -6x -12 2x2 -2x-12