Question

What is the value of p if the slope the line passing through the points (p, 1) and (-3, -1) is 2?

• A. 1
• B. -1
• C. -2
• D. 2

Answer 1

The correct option is C -2

Given: Points (p, 1) and (-3, -1), Slope = 2

We know that the slope of the line passing through the points $(x_1,y_1)$ and $(x_2,y_2)$ is $\frac{y_2-y_1}{x_2-x_1}$.

So, 2 = $\frac{-1-1}{-3-p}$
2 = $\frac{-2}{-3-p}$
-6 - 2p = -2
-2p = 4
p = -2