SOLUTION: F (x)=mx+b such that f (2)=4 and the straight line represented by f has slope -1

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Question 988682: F (x)=mx+b such that f (2)=4 and the straight line represented by f has slope -1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
m=-1
.
.
Then use the point to solve for b,
4=%28-1%29%282%29%2Bb
4=-2%2Bb
b=6
.
.
f%28x%29=-x%2B6