Question

Find the equation of a line y=mx+b of a line that passes through the points (-1,-4) and (-3,7)
I don't remember how to set this up

Answer 1

I put in the x's and y's and got -2/11

Answer 2

The slope is rise over run, that is the difference in \(y\) over the difference in \(x\)
\[m=\frac{ y _{2}−y_{1} }{ x_{2}−x_{1} } \]
Then substitute the found \(m\) into the equation \(y=ax+b\),
together with \(x_{1}\) and \(y_{1}\), so that you can find \(b\)

Answer 3

sorry I wrote the equation for m the wrong way, the first time

Answer 4

so m = -11/2

Answer 5

@minisweet4

Answer 6

I think I get it