Question

What is the slope of the line passing through `(9,9);(-11,7)`?

Answer 1

The formula for the slope of a line is m = `(y_2 - y_1) / (x_2 - x_1)`

Explanation:

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

m = `(7 - 9) / (-11 - 9)`

m = `-2/-20`

m = `-1/10`