Thread: Trig graph shifts

So the problem is:

Find the amplitude, period and phase shift and then graph the function.



So the answer in the book has these answers as
My question is, where did the negative come from for the phase shift?

Originally Posted by xsavethesporksx

So the problem is:

Find the amplitude, period and phase shift and then graph the function.



So the answer in the book has these answers as
My question is, where did the negative come from for the phase shift?

A simple way to understand it is to consider this:

A parabola with equation is shifted 3 units right from the origin.

A parabola with equation is shifted 3 units left fom the origin.

Think about it.

so same concept... just change the sign and shift it

I think that I over thought that one a bit.

Thanks