Please Help with this algebra question.?

Question

Find the slope, if it exists, of the line containing the points (-6, 1/2) and (-2, 1/2).

A: The Slope is m=_____
B: The slope is undefined.
I think that the answer is b, since the points are on the same line.
Left my books at school, and need to finish this exam today.

Answer 1

Given that two points are

Slope of a line containing two points is

m = 0

There is no slope for the given two points. (option b)

Comments

The slope of the line passing through (-6, 1/2) and (-2, 1/2) is  m =[1/2 - 1/2] / [ -2 + 6]

m = 0/4

m = 0, indicate that the line is horizontal.

Option A  is correct choice.