Problem
I need help finding out the point-slope form for (-6,3); m=3
Solution
For this case we want to write the following formula:
y=mx+b
And for this case we know that m=3 and we can use x= -6 and y=3, replacing into the equation we got:
3= 3(-6)+b
And solving for b we got:
b= 3+18=21
And our equation would be given by:
y= 3x+21