Which of the following quartic functions has x=-1 and x=-3 as its only two real zeros a. y=x^4-4x^3-4x^2-4x-3 b. y=-x^4-4x^3+4x^2+4x+3 c. y=x^4+4x^3+3x^2+4x-4 d. y=x^4+4x^3+4x^2+4x+3

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.