396,070 views
20 votes
20 votes
A line that includes the points (z,2) and (–8,–5) has an undefined slope. What is the value of z?

User Jeffrey Kramer
by
2.5k points

1 Answer

21 votes
21 votes

Answer: z = -8

Explanation:

A line with an "undefined slope" is one that is vertical to the x axis. It has a slope that is undefined because there is no change in x for all points on the line. The slope is the Rise over the Run, and in this case there is no :Run." That means dividing by zero, so it is undefined.

Since x foes not change, the unknown point (z,2) would be (-8,2).

z = -8

User Daniel Haley
by
3.1k points