# How do you find the amplitude, phase shift and period of y= 5sin(pi/2 * x)?

##### 1 Answer
Sep 14, 2015

Amplitude 5, period is 4 and there is no phase shift.

#### Explanation:

Compare with the standard equation y=A sin (Bx+C) +D. In this A is the amplitude, $\frac{2 \pi}{B}$ is the period, C is the horizontal shift and D is the vertical shift.

All the required information can be figured out now. Amplitude is 5, period is $\frac{2 \pi}{\frac{\pi}{2}} = 4$ and there is no phase shift.