SOLUTION: What is a linear equation for f in the given: f(-4)=-2,f(2)=7

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Question 847571: What is a linear equation for f in the given: f(-4)=-2,f(2)=7
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(-2,-4), (7,2)
slope is -6/-9=2/3
y=2/3x+b
-4=2/3*(-2)+b
-4=-4/3+b
-12=-4+3b
-8=3b
-8/3=b
y=2/3x-8/3
f(x)=2/3x-8/3