### Home > CCA2 > Chapter 1 > Lesson 1.2.2 > Problem1-89

1-89.

What value of $y$ allows you to find the $x$-intercept? For each of the equations below, find where its graph intersects the $x$-axis. Write each answer as an ordered pair.

$y = 0$ allows you to find the $x$-intercept.

1. $y = 3 x + 6$

$(0) = 3x + 6$

$(−2, 0)$

1. $x = 5 y - 10$

$(−10, 0)$

1. $y = x ^ { 2 }$

1. $y = 2 x ^ { 2 } - 4$

$\left(\pm\sqrt{2}, 0\right)$

1. $y = ( x - 5 ) ^ { 2 }$

Let $y = 0$.

Take the square root of both sides of the equation.

Add $5$ to both sides of the equation.

$(5, 0)$

1. $y = x ^ { 3 } - 13$

$\left(^3\sqrt{13}, 0\right)$