# How do you use the amplitude and period to graph f(x) = 4 sin(x -pi/2 )?

period: 2 $\pi$
the amplitude is how high the graph will so since it is 4 the graph will go up 4 and down 4. The graph will shift right $\frac{\pi}{2}$, making the beginning of the sin wave move right. and x is your period. The period is always $2 \pi$ divided by the x value. Since there is no number in front of x, it is considered a 1. Therefore the period is $2 \pi$.