Question

A reflector on the inside of a certain flashlight is a parabola given by the equation y = x2– 25. Find the points where

Answer 1

Answer:

$\boxed{x_1 = 5~~or~~x_2 = -5}$

.

Step-by-step explanation:

$\to y = 0$

$y = x^2 - 25$

$x^2 - 25 = 0$

$x^2 = 25$

$x = \pm \sqrt{25}$

$x = \pm 5$

.

$x = 5$

$x = -5$