SOLUTION: I am working with the function y=-3 cos (2(x-pi/4))-1. I have to graph the parent function and I'm not sure if the parent function is y=-3cos2x or y=3cos2x. How do you know whi

Question 1029576: I am working with the function y=-3 cos (2(x-pi/4))-1.
I have to graph the parent function and I'm not sure if the parent function is y=-3cos2x or y=3cos2x. How do you know which one it is?? Thanks!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I am working with the function y=-3 cos (2(x-pi/4))-1.
I have to graph the parent function and I'm not sure if the parent function is y=-3cos2x or y=3cos2x. How do you know which one it is??
-----
The parent is y = cos(x) not y = -cos(x)
Does that help?
Cheers,
Stan H.

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