SOLUTION: Need help solving f(3)--2 and f(2)=5

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Question 364312: Need help solving f(3)--2 and f(2)=5
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=y=mx%2Bb
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f%283%29=-2
f%282%29=5
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m=%28f%283%29-f%282%29%29%2F%283-2%29=%28-2-5%29%2F1=-7
y=mx%2Bb
Use either point to solve for b.
5=-7%282%29%2Bb
5=-14%2Bb
b=9
highlight%28y=-7x%2B19%29
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