How can y equals 5 sin x be graphed?

Answer 1

It is the same as sin(x) but stretched by 5 in the y-direction

i.e. the x-intercepts are at 0, pi and 2pi (or 0, 180, 360 in degrees)

the y-intercept is at 5 and all of the stationary points are at either 5 or -5.