Jesus ew math bruh. Anyway let’s sing the campfire
Song
A. DNA stores genetic information
DNA is located inside the nucleus of a cell which holds a person's genetic information
There are two ways to approach this.
Option #1:
Use the slope formula
.

That value is undefined, so the slope is undefined.
Option #2:
Because the two points have the same x-value, they will be vertically above/below one another. This means your line is a vertical line and the slope of a vertical line is undefined.
Either way, your slope is undefined.