SOLUTION: Which of the following is NOT an exponential function? f(x)=x^3 f(x)=3^x f(x)=5^2x

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Question 147991: Which of the following is NOT an exponential function?
f(x)=x^3
f(x)=3^x
f(x)=5^2x
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Look for the equation that has nothing to do with exponential of 'x'. The only one is:
f(x)=5^2x (this is your answer)