f(x) = 5 sin(4x) \ \

Compare equation with standard from ( f(x) = A sin(ωx) ) and write the coefficients. \ \

A = 5 \ \

ω = 4 \ \

Amplitude = |A| = |5|=5 \ \

Period T = 2π/ω = 2π/4 = π/2

The solution is .