7. *Given a function f, each solution to the equation f(x) 0 is called a zero of f. Find the zeros of the following: a. f(x) = sin(3x) b. g(x) = logs (x - 3) c. h(xx) = V2x + 5 d. p(x) = x + 4x 8. *The zeros of a function P are -4, 5, and 8. Find the zeros of the functions a. f(x) = P(4x) b. g(x) =-2P(x) c. t(x) = P(x-3) d. h(x) = P(2x/5) e. r(x) = P(2x-3) 9. The equation f (x) = (x + 1)(x - 1)(x + 4) defines a quartic function. How many zeros does f have? How many x-intercepts does the graph of y = f(x) have