SOLUTION: find the equation of the line passing through each pair of points(-9,2) and (0,0)

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Question 804304: find the equation of the line passing through each pair of points(-9,2) and (0,0)
Answer by erica65404(394) About Me  (Show Source):
You can put this solution on YOUR website!
first you need to find the slope.
%28y%5E2-y%5E1%29%2F%28x%5E2-x%5E1%29=m
%280-2%29%2F%280-%28-9%29%29=m
%28-2%29%2F9=m
plug this into slope intercept equation
y=mx%2Bb
y=%28%28-2%29%2F9%29x%2Bb
plug (-9,2) into the above equation to solve for y.
2=%28%28-2%29%2F9%29%28-9%29%2Bb
2=2%2Bb
b=0
so the equation of the line is y=%28%28-2%29%2F9%29x