Find the exponential function f(x) =

Cax whose graph is given. f x Cax x f(x) = f x

x=0,f(x)=2

2=ca^0=c*1=c =>c=2

at x=2, f(x)=2/9

therfore 2/9=2a^2 =>a=1/3

f(x)=2(1/3)^x

Find the exponential function f(x) =

Cax whose graph is given. f x Cax x f(x) = f x

x=0,f(x)=2

2=ca^0=c*1=c =>c=2

at x=2, f(x)=2/9

therfore 2/9=2a^2 =>a=1/3

f(x)=2(1/3)^x