Question

Choose the function whose graph is given by (graph inside!)

A. y = cos(2x)

B. y = -0.5sin x

C. y = 0.5cos x

D. y = cos x

***i'm not too sure, but i think it's either B or C... is that right??
and if so, how can i figure out which one it is? :D

Answer 1

graph :)

Answer 2

the amplitude is 0.5 right ? and the curve is cos curve...so ?

Answer 3

mhmm :) so the answer is C. y = 0.5cos x?? :D

Answer 4

yup.

Answer 5

aweosme! thanks :)