Question

this is a vertical line and therefore the slope is undefined. true false

Explanation:

Step1: Recall slope formula

The slope $m$ of a line passing through two points $(x_1,y_1)$ and $(x_2,y_2)$ is $m=\frac{y_2 - y_1}{x_2 - x_1}$.

Step2: Analyze vertical line

For a vertical line, $x_1=x_2$. So the denominator $x_2 - x_1 = 0$. Division by zero is undefined.

Answer:

True