# How do you find the slope-intercept form for the equation of the line which passes through the point (–1, 3) and has a slope of –2?

Jul 30, 2016

Use the slope-intercept form equation, $y = m x + b$.

#### Explanation:

All you have to do is substitute some values. $M$ is the slope ($- 2$) and $x$ and $y$ can be substituted for $- 1$ and $3$. Our equation now looks like this:

$3 = - 2 \left(- 1\right) + b$

Now, all we have to do is solve for b:

$3 = 2 + b$

$1 = b$

We now have our equation, $y = - 2 x + 1$.