Rewrite the function f(x)=2
1
3
–
2x in the form f(x)=a(b)x.
Write a and b as whole numbers, decimals, or simplified proper or improper fractions.
f(x)=
Now use the function in its new form to complete the sentence.
When x increases by 1, the function
by a factor of
f(x) = 2(1/3)^x
When x increases by 1, the function decreases by a factor of 1/3.