Question

Find the slope of the line through the pair of points. A(2, –3), P(2, 9)

Answer 1

Slope = rise/ run = (y2-y1)/(x2-x1)


(9-(-3))/(2-2) = 0 cannot divide by zero.

Both points have the same x coordinate which means a vertical line

Answer 2

so its undefined?

Answer 3

The slope is 0, it is a straight vertical line.