Question 431951
I would like to know did I do this correctly. email address is sowellsamantha@yahoo.com
Ax + BY = C

3y = -9X -12

-3         -3

-3y = -9x -12

-3   -3   -3

In slope intercept form y = 3x + 4  **** It's y = -3x - 4, just divide by 3
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m = -3
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Slope is (m) which equalizes m =  3

My next question is

Assign coordinates for any two points: A( ..., ...) B( ..., ...).
Calculate slope of line passing through these points.
Find equation of this line in a form: y = mx + b 

I'll send an example later, I have an email problem of some sort.