# What is the slope of the line passing through the following points:  (-1,3) ,(-3, -6) ?

Apr 19, 2018

First of all you need the formula of the slope which is
$\frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$
Then use these values and place them in their designated places
${y}_{2} = - 6$
${y}_{1} = 3$
${x}_{2} = - 3$
${x}_{1} = - 1$
so: $\frac{- 6 - 3}{- 3 - \left(- 1\right)}$

$\frac{- 9}{- 3 + 1}$ Remember $\left(-\right) \cdot \left(-\right)$ is $\left(+\right)$

$\frac{- 9}{- 2}$

so gradient is $4.5$
remember to cancel out the $-$ sign