Which point is an x-intercept of the quadratic function f(x) = (x - 8)(x + 9)?
(0, 8) (0, -8) (9, 0) (-9, 0)

Solution:

Given, f(x) = (x - 8)(x + 9)

We have to find an x-intercept of the quadratic function.

The x-intercepts are also called roots.

To find the roots set f(x) = 0

f(x) = (x - 8)(x + 9) = 0

So, x - 8 = 0

x = 8

x + 9 = 0

x = -9

Therefore, the x-intercepts are (8, 0) and (-9, 0).

Which point is an x-intercept of the quadratic function f(x) = (x - 8)(x + 9)?

Summary:

The x-intercept of the quadratic function f(x) = (x - 8)(x + 9) are (8, 0) and (-9, 0).