Let h be a polynomial function. Which statements indicate that -3 is a zero of h? Select all that apply.
•h(-3) = 0
•h(0) = -3
•(x-3) is a factor of h
•(x+3) is a factor of h
•The graph of h (x) shows an intercept at x = -3
•The graph of h (x) shows an intercept at y = -3