Question

Find the slope of the line passing through points -8, 8 and 7,8

Answer 1

We can calculate the slope of a line using the formula

`m=\frac{y_b-y_a_{}}{x_b-x_a}`

Let's say that

`\begin{gathered} A=(-8,8) \\ B=(7,8) \end{gathered}`

Therefore

`\begin{gathered} x_a=-8,y_a=8 \\ x_b=7,y_b=8 \end{gathered}`

Using the formula

`m=(y_b-y_a)/(x_b-x_a)=(8-8)/(7-(-8))=(0)/(15)=0`

The slope of the line passing through points (-8, 8) and (7,8) is 0. Which means it's a constant function (horizontal line).