State the y-coordinate of the y-intercept for the function below f(x)=4x^(3)-12x^(2)-x+15

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32