Answer:
[tex]\frac{9}{64}[/tex]
Step-by-step explanation:
Given
f(x) = [tex](\frac{3}{8}) ^{x}[/tex] then
f(2) = ([tex]\frac{3}{8}[/tex] )² = [tex]\frac{3^2}{8^2}[/tex] = [tex]\frac{9}{64}[/tex]