What is the slope of the line between  (-2,2)  and  (-1,87) ?

Mar 27, 2016

slope = 85

Explanation:

To find the gradient (slope) of a line passing through 2 points use the $\textcolor{b l u e}{\text{ gradient formula }}$

$m = \frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$

where $\left({x}_{1} , {y}_{1}\right) \text{ and " (x_2,y_2)" are 2 coordinate points }$

let $\left({x}_{1} , {y}_{1}\right) = \left(- 2 , 2\right) \text{ and } \left({x}_{2} , {y}_{2}\right) = \left(- 1 , 87\right)$

now substitute these values into the formula.

$\Rightarrow m = \frac{87 - 2}{- 1 - \left(- 2\right)} = \frac{85}{1} = 85$