9. Express as an equivalent expression: 3 log (x + 4)-2logy +log 1 9 . A. log (3x+13-2y) B. log * +64 C. 12log(x) log (2y) D. log ( * +4) 10. Which of the functions corresponds to the graph? 10. . . . . . . ...... . . . . . .. . . .... . : . . . . . . . . 4 A. f(x) =e*+1 B. f(x)=-e*+2 C. f(x)=e-*+2 D. f(x)=e*+2\f11. Suppose that a function f has exactly two x-intercepts. Which of the following statements MUST be true? 11. A. f is a quadratic function. B. There are two points on the graph of f which have x-coordinates of 0. C. The equation f (x) = O has exactly two real-number solutions. D. f is an invertible function. 12. The graph of y = f (x) is shown at the left and the graph of y = g(x) is shown at the right. (No formulas are given.) What is the relationship between g(x) and f (x)? 12. nyOC) y:g(x) A- 2306) :fOC \" 2) , 5 B. g(x) =f(x~ 5)72 C. g(x)=f(x5)2 D. g(x):f(x2)5 7. Write a slope-intercept equation for a line parallel to the line x -4y =6 which passes through the point (12, -3) 7. A. y= =x- B. y=-4x+45 C. y= - -x-1 D. y= = x-3 B. Does the graph below represent a function and is it one-to-one? 8. . . .. . . . . ... .... . . . . . . . . . . . : . . . . . : . .. . . . ... . . . . . . . . . . . . : .. : . . . . . . . . . . . . . . . . . . . ... . ..... .............. . . . . . . . . ;;4.. . . . . : . . . .HA ...... . . . . . . . . .. . . ... ..... . . . . . . : . :.... . . . .. A. It is a function but not one-to-one. B. It is a function and it is one-to-one. C. It is not a function but it is one-to-one. D. It is not a function and it is not one-to-one