please helppp mee
transformation y=sinx to y=-2sin(3x-⫪/4)+2

can someone explain why it would be a horizontal shrink by 1/3 vs horizontal shrink by 3

Question

please helppp mee
transformation y=sinx to y=-2sin(3x-⫪/4)+2

can someone explain why it would be a horizontal shrink by 1/3 vs horizontal shrink by 3

mertsj · Answer

Because the coefficient of x = 2pi/period  so 3=2pi/period so 3(period) = 2pi and the period = 2/3 pi instead of the normal 2pi

anonymous · Answer

okay so f it was like (1/3 x - ⫪/4) then the answer would be a horizontal stretch by 3 ?

mertsj · Answer

you would plug the coefficient of x into the equation I gave you and solve.

coefficient of x = 2pi/period

mertsj · Answer

1/3=2pi/period

anonymous · Answer

to be honest i have no idea where you got that equation lol