Question

http://prntscr.com/3aczry

Answer 1

I'd love to help, but I'm not very good with these types of problems. Sorry :/

Answer 2

no it is not C

Answer 3

lol ok

Answer 4

domain is all real numbers for sure
period is \(\frac{2\pi}{b}=\frac{2\pi}{4}=\frac{\pi}{2}\)

Answer 5

then it must be A

Answer 6

but the 'amplitude" is a positive number
it is not \(-6\) but rather \(|-6|=6\)

Answer 7

yes, it is A

Answer 8

thnxs