Which of the lines below has an undefined slope?

Question

asked Sep 28, 2019 38.1k views

2 Answers

Macbutch · Answer 1 · 2019-10-04T07:57:51+0000

Answer:

The correct option is B.

Explanation:

The slope of a line is calculated as

m=(y_2-y_1)/(x_2-x_1)

The slope of line is undefined if there is no change in the values of x. It is possible only in the case of vertical line.

Graph B represents a vertical line. So the slope of the line in graph B is

$m_B=\infty$

The slope of line B is undefined, therefore the correct option is B.