How do you find the period, amplitude and sketch #y=-2sin6x#?
The period is always given by
The graph has endured a reflection over the y-axis, because the leading coefficient, or
When graphing, remember that sinusoidal functions are cyclic, or they repeat to infinity. The shape isn't a straight line, so there should always be a curve, and you pencil should never leave the page when drawing them.
In the end, you should get the following graph
Hopefully this helps!