# How do you write the equation of a line through points (-1,4), (-1, 7.2)?

##### 1 Answer

Jun 25, 2018

See below for an explanation!!

#### Explanation:

The line is a vertical line at

where

We can't divide by 0! What does this mean? The slope is undefined, so the line will be vertical. The two points that the line passes through are located at the x-value of **Therefore, the equation of the line is #x=-1#.**

Hope this helped!