SOLUTION: Let the function f be defined by f(x)=x+1. If 2f(p)=20, what is the value of f(3p)?

Question 170124: Let the function f be defined by f(x)=x+1. If 2f(p)=20, what is the value of f(3p)?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Let the function f be defined by f(x)=x+1. If 2f(p)=20, what is the value of f(3p)?
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f(3p) = 3p + 1
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If 2f(p) = 20, then f(p) = 10
But f(p) = p+1
So, p+1 = 10
Therefore p = 9
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Final Answer: f(3p) = 3p+1 = 3*9+1 = 28
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Cheers,
Stan H.
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