Rewrite the function f(x) = 0.25(0.5)^-3x in the form f(x) = a(b)^x.

Write a and b as whole numbers, decimals, or simplified proper or improper fractions.
f(x) =

0.25(0.5)^-3x can be rewritten as f(x) = (0.5)^3x = (1/2)^3x.

So, in the form f(x) = a(b)^x, we have a = 1 and b = 1/2.