Question

What are the x-intercepts of the function f(x) = –2x2 – 3x + 20?

(–4, 0) and
and (4, 0)
(–5, 0) and (2, 0)
(–2, 0) and (5, 0)

Answer 1

If you would like to find the x-intercepts of the function f(x) = - 2 * x^2 - 3 * x + 20, you can calculate this using the following steps:

f(x) = - 2 * x^2 - 3 * x + 20
f(x) = - (2x - 5) * (x + 4)
1. x = - 4
2. x = 5/2

(x, y) = (-4, 0)

The correct result would be (-4, 0).