Rewrite the function f(x)=0.04
x
2
in the form f(x)=a(1+r)x. What are the values of a and r?
Write your answers as whole numbers, decimals, or simplified proper or improper fractions.
a=
r=
Now use your answers to complete the sentence.
When x increases by 1, the function
in the form f(x) = a(1+r)^x is f(x) = a(1+r)^(x-1) +ar.
a = 1
r = 0.04
When x increases by 1, the function f(x) changes by a factor of 1.04.