SOLUTION: Give an equation of the form f(x)=a^x to define the exponential function whose graph contains the point (4,81).

Algebra ->  Rational-functions -> SOLUTION: Give an equation of the form f(x)=a^x to define the exponential function whose graph contains the point (4,81).       Log On


   

Question 593910: Give an equation of the form f(x)=a^x to define the exponential function whose graph contains the point (4,81).
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=a%5Ex

81=a%5E4

root%284%2C81%29=a

3=a


Answer: The equation is f%28x%29+=+3%5Ex