# What is the slope and intercept of x = -9?

Aug 21, 2017

#### Answer:

See a solution process below:

#### Explanation:

The line $x = - 9$ is a vertical line where for each and every value of $y$, $x$ will equal $- 9$.

By definition, the slope of a vertical line is undefined.

because this is a vertical line at the $- 9$ point on the $x$-axis, there will be no y-intercept.

The $x$ intercept will be: $\left(- 9 , 0\right)$.