Question

Find the slope of the line joining the points A (-10, 50) and BB(10, – 30). SHOW ALL WORK!!

Answer 1

The slope of line passing though two points (x_1,y_1) and (x_2,y_2) is,

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

Substitute the value in the equation to obtain the value of m.

`\begin{gathered} m=(-30-50)/(10-(-10)) \\ =(-80)/(20) \\ =-4 \end{gathered}`

So slope of the line is -4.