Ninjadragons98

Huge thank you to both of you guys for taking the time to help!

Hi Melody, I too dont have a graphing calculator. What am I to do?

Thank you so much for all your help Melody!!

How do I do this?

Hi Melody, thank you so much for all your help!! You have really helped me out a lot! 

So it wouldnt be y= -3 cos 2x ??

Yes, thank you very much!!