Question

Help here please:
Trig behaviors

Answer 1

- sign in-front or -x inside

and also multiply x by 2

Answer 2

So y = -2sin(-2x) like this?

Answer 3

-2sin(2x) or 2sin(-2x)

Ah ...and i completely ignored Amplitude.

Answer 4

vertically stretch by 2
horizontal stretch by 3
and reflect x axis
so y=-2sin(3x)

Answer 5

no the period is 2pi/3
--> y = -2sin(3x)

Answer 6

Ops .. sorry, it's 3

Answer 7

Ohh.
so

-2sin(3x) right?

Thank you so much guys:)

Answer 8

yep , notice it took 1.5 cycles to get to 180 degrees so 3 cycles in normal 2pi period