Question

How do you graph `y=-2sin3x`?

Answer 1

y is periodic, with period `( 2 pi)/3`..

In `[0, (2 pi)/3]`, the graph is one full wave, with amplitude 2..

The lowest point is `(pi/6, -2)`. The crest is at`(pi/2, 2).`.

`(pi/3, 0)` on the x-axis bisects this wave..
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#The graph for y=+2 sin (3 x) will be the mirror image of this graph, with respect to x-axis