SOLUTION: Find the function rule for the following input/output function table. input/output -2/12 1/9 4/6 What is the function rule?

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Question 128846This question is from textbook mathematics applications and concepts
: Find the function rule for the following input/output function table.
input/output
-2/12
1/9
4/6
What is the function rule? This question is from textbook mathematics applications and concepts

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
input/output
-2/12
1/9
4/6
---------
y decreases by 3 when x increases by 3, so the slope = -1
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y = -x+b
12 = (-1)(-2)+b
b = 10
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EQUATION:
y = -x + 10
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Cheers,
Stan H.