# How do you find the slope given (1, 5) and (1, -7)?

Mar 14, 2018

See a solution process below:

#### Explanation:

Because the $x$ value for both points is the same, this means;

For each and every value of $y$; $x$ will have the same value of $1$.

By definition this is a vertical line.

And, by definition, vertical lines have an undefined slope.