SOLUTION: Please help me solve this… Find f(3) and f(-1) f(x)=3x

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Question 902696: Please help me solve this…
Find f(3) and f(-1)
f(x)=3x
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=3x
Substitute your value for x
f%283%29=3%283%29
f%283%29=9
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f%28-1%29=3%28-1%29
f%28-1%29=-3