If we have a point,  , and a slope, m, here's the formula we  
use to find the equation of a line: 

It's called the
pointslope formula
(Duh!)
You are going to use this a LOT!
Luckily, it's pretty easy  let's just do one:
Let's find the equation of the
line that passes through the point
(
4 , 3
)
with a slope of
2:
Just stick the stuff in a clean it up!
TRY IT:
Find the equation of the line that passes through the point ( 2 , 6 ) with a slope of 3.