Answer:
a. 0
Step-by-step explanation:
METHOD 1:
The formula of a slope:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have two points (4, 2) and (-2, 2).
Substitute:
[tex]m=\dfrac{2-2}{-2-4}=\dfrac{0}{-6}=0[/tex]
METHOD 2:
The second coordintes of the points are the same (4, 2), (-2, 2).
Therefore, we conclude that it is a horizontal line.
The horizontal line has a slope of 0.
Therefore your answer is a. 0
