Question

The slope of the line which connect

points G(-3, -2) and H(x, 11) is
undefined. What is the value of x?

Answer 1

Below

Explanation:

Vertical lines have slope = 'undefined'

so the 'x' values in the two points have to be the same (vertical line)

x = -3

As a side note: Horizontal lines have a slope = 0

Answer 2

-3

Explanation:

A vertical line has undefined slope. These two points will be stacked one directly above (below) the other. The x will be the same in both points.

So the unknown in H(x,11) is -3

H (-3, 11)