Question

Find the slope, if it exists, of the line containing the points (10,-3) and (10,-8).

Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
m=

Answer 1

The slope is undefined.

Explanation:

The line must pass through the points (10,-3) and (10,-8), meaning that it must be vertical. The slope of a line is undefined if the line is vertical.