SOLUTION: what is the equation of? P1=(4,-5); P2=(11,2)

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Question 352384: what is the equation of? P1=(4,-5); P2=(11,2)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First calculate the slope.
m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29=%282-%28-5%29%29%2F%2811-4%29=7%2F7=1
Now use the slope intercept form,
y=mx%2Bb
y=x%2Bb
Use either point to solve for b.
2=11%2Bb
b=-9
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highlight%28y=x-9%29