Answer:
m= 0
Step-by-step explanation:
Since the two points have the same y-coordinates, the line passing through them is a horizontal line. Horizontal lines have a slope of zero.
Prove:
[tex]\boxed{slope = \frac{y_1 - y_2}{x_1 - x_2} }[/tex]
Slope between (6, 5) and (-9, 5)
[tex] = \frac{5 - 5}{ - 9 - 6} [/tex]
[tex] = \frac{0}{ - 15} [/tex]
= 0
To learn more about slopes, check out: https://brainly.com/question/10863938
