SOLUTION: if f is a linear function and f(0)=10 and f(10)=14, find f(5) and f(-5).

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Question 144186: if f is a linear function and f(0)=10 and f(10)=14, find f(5) and f(-5).
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
if f is a linear function and f(0)=10 and f(10)=14, find f(5) and f(-5).
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f(0) gives you the y-intercept.
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Find the slope:
slope = (14-10)/(10-0) = 4/10 = 2/5
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EQUATION:
f(x) = (2/5)x + 10
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f(5) = (2/5)*5 + 10 = 12
f(-5) = (2/5)*(-5) + 10 = 8
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Cheers,
Stan H.