Find the slope of the line that passes through the given points.
-$( - 2 , - 4 )$ and $( - 2 , - 6 )$
A) undefined
B) 0
C) $- \frac { 1 } { 2 }$
D) $\frac { 5 } { 2 }$

Question

Quizplus · Accepted Answer

The slope of a line passing through two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by $m = \frac{y_2 - y_1}{x_2 - x_1}$. Here, since $x_1 = x_2 = -2$, the denominator of the slope formula becomes 0, which means the slope is undefined. This happens when the line is vertical.

Find the Slope of the Line That Passes Through the Given