Find an Equation from the Graph of a Sinusoidal Function

Find an Equation from the Graph of a Sinusoidal Function First determine if you will use sine or cosine. Find Amplitude, Vertical Shift, Period, and Phase Shift. y=4 cos (pi/5 x) + 2 MyOpenMath Question ID: 285969 and 4519 Precalculus / Trigonometry ‪@ProfessorMcMath‬