SOLUTION: write an exponential function y=ab^x for a graph that include (4,8) (6,32)

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: write an exponential function y=ab^x for a graph that include (4,8) (6,32)      Log On


   

Question 434037: write an exponential function y=ab^x for a graph that include (4,8) (6,32)
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
8 = a b^4

32 = a b^6

dividing equations ___ 4 = b^2 ___ 2 = b

8 = a 16 ___ 1/2 = a

y = (1/2)2^x ___ y = 2^(x - 1)