What are the x-intercepts of this quadratic function? g(x) = -2(x − 4)(x + 1)

Question

asked Feb 5, 2021 30.7k views

2 Answers

Wilder · Answer 1 · 2021-02-11T18:54:56+0000

For this case we must find the x-intercepsts of the following function:

g (x) = - 2 (x-4) (x + 1)

For this we do
y = 0 , that is:
g (x) = 0 . So:

0 = -2 (x-4) (x + 1)

The values of "x" that comply with equality are:

$x_ {1} = 4\\x_ {2} = - 1$

Thus, the x-intercepsts of the function are:

$(x_ {1}, y_ {1}) :( 4,0)\\(x_ {2}, y_ {2}): (- 1,0)$

Answer:

$(x_ {1}, y_ {1}) :( 4,0)\\(x_ {2}, y_ {2}): (- 1,0)$