| 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
point-slope 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.
|
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