Question

Which point is an x-intercept of the quadratic function f(x) = (x + 6)(x – 3)?

Answer 1

(0,-6) and (0,3)

Explanation:

(0,-6) and (0,3) because the x intercept is when y=0 and if you want y to equal 0 one of the 2 parenthesis's values should equal 0 there are 2 answers because even if one of the parenthesis equals 0 the other one that is multiplied by it no matter what the value of that is equals 0. For example take (x+3)(x-4) one way to make this 0 would be for x to equal -3 or +4.

Answer 2

x-intercepts:

(-6,0) and (3,0)

Explanation:

x-intercept is when y=0