SOLUTION: Write an Exponential function of the form y=ab^x with given points (2,18),(3,108)

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Write an Exponential function of the form y=ab^x with given points (2,18),(3,108)       Log On


   

Question 804953: Write an Exponential function of the form y=ab^x with given points
(2,18),(3,108)
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
108=a%2A+b%5E3
18=++a+%2Ab%5E2
taking their quotient...
6=b


18=a+%2A6%5E2
a=1%2F2


y=+%281%2F2+%29%2A+6%5Ex