Question

The graph of a sinusoidal function has a maximum point at (0,5) and then has a minimum point at (2π,-5). Write the formula of the function, where is entered in radians.

Answer 1

Sinusoidal function is

f(x) = A• sin X + B

maximum= f(0) = 5

minimum f(2π) = -5

Then use

Cos (0) = 1

Cos (2π) = -1