Question

What is the slope of the line passing through the points (-3,4) and (2,-1)A. 3/5B. 1C. -1D. -5/3

Answer 1

The slope formula for two points is

`m=(y_2-y_1)/(x_2-x_1)`

where

`\begin{gathered} (x_1,y_1)=(-3,4) \\ (x_2,y_2)=(2,-1) \end{gathered}`

If we substitute these points into the slope formula, we have

`m=(-1-4)/(2-(-3))`

which gives

`\begin{gathered} m=(-5)/(2+3) \\ m=(-5)/(5) \end{gathered}`

therefore m=-1. The answer is option C