# How do you graph y= 3 sin(pi*x/2)?

Mar 1, 2016

$A = 3 , B = \frac{\pi}{2} , C = 0 , D = 0 , P = \frac{2 \pi}{B} = \frac{2 \pi}{\frac{\pi}{2}} = 4$
$U B = 3 , L B = - 3 , I n c r e m e n t s = \frac{P}{4} = 1$

#### Explanation:

To graph draw the axis and your middle axis is the x-axis since C=0. From the x-axis go up 3 and go down 3 units then draw your highest and lowest or upper bound and lower bound. To sketch the graph you start from zero since D=0 and go in increments of 1 unit each time. Note that you only need five sinusoidal points to sketch one cycle but you can always continue your graph as it is going to infinity.