Question

what is the slope of a line that passes through the points (-9,-2) and (-9,-6)? write the answer in simplest form.​

Answer 1

$m = \frac{y2 - y1}{x2 - x1 } \\m = \frac{ - 6 - ( - 2)}{ - 9 - ( - 9)} \\ m = \frac{ - 6 + 2}{ - 9 + 9} \\ m = \frac{ - 4}{0}$

Slope is undefined since there can't be zero in numerator

Please give brainliest