Question

k

Answer 1

looks like a graph of cosine shifted down

Answer 2

Well it is a cos graph that has been diplaced down 2 steps and has an aplitude of 2

Answer 3

what @ivancsc1996 said
also the period is 6

Answer 4

isnt the amplitude 3?

Answer 5

The function should be: \[y=2\cos(\frac{ \pi }{ 3 } x)-2\]

Answer 6

no the amplitude is 2, it goes from \(-4\) to \(0\) which has length 4

Answer 7

ok but isn't period pi / 6

Answer 8

The two in the coefficient of cos shows the amplitude. The pi/3 show tha shift in period (you need a pi/3 so that when x=6, the net number inside the cos gives 2pi and therefore, the wave goes back to its starting place). The -2 shows the shift in the y axis

Answer 9

I understnad. Thanks

Answer 10

Its 2pi/b not pi/b

Answer 11

Yes :)

Answer 12

you have just earned yourself a fan :)