Question

Does anyone know which one it is ?

Answer 1

The slope of the line is undefined

Explanation:

The given line is a vertical line.

The slope of any vertical line is undefined.

Let us see why by using the slope formula:

`m = (y_2-y_1)/(x_2-x_1)`

We substitute the coordinates of the points to obtain:

`m = (3 - - 2)/(1 - 1) = (5)/(0)`

This is not defined.