Find the slope of the line satisfying the given conditions.
-through (-9, -1) and (-1, -1)
A) -8
B) 0
C) undefined
D) 8

Question

Quizplus · Accepted Answer

The slope of a line through two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by $m = \frac{y_2 - y_1}{x_2 - x_1}$. Substituting the given points (-9, -1) and (-1, -1) into this formula gives $m = \frac{-1 - (-1)}{-1 - (-9)} = \frac{0}{8} = 0$, indicating a horizontal line.

Find the Slope of the Line Satisfying the Given Conditions