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

A. y = sinx - 2

B. y = sin(x + 2)

C. y = sin(x - 2)

D. y = cos(x - 1)

**my answer: D
is that correct?

Question

Choose the function whose graph is given by (graph will be inside!)

A.       y = sinx - 2

B.       y = sin(x + 2)

C.       y = sin(x - 2)

D.       y = cos(x - 1)

**my answer: D
is that correct?

anonymous · Answer

graph!

hartnn · Answer

not actually, did you consider C ?

anonymous · Answer

not really hahaa i just thought cuz it was -1 on the graph and it was the only one... why? is it C? Not D? if so, how?? :O

hartnn · Answer

the graph of sine function seems to be shifted by 2 units.

anonymous · Answer

ohhh i seee... so that automatically eliminates D right? and so it's positive, so it would be -2, so the answer is C?

hartnn · Answer

yeah..

anonymous · Answer

awesome! :) thank youuu :D

just to make sure, whenever it is to the right, it is -, and to the left is +?

hartnn · Answer

f(x-a) , right shift f(x) by a
f(x+a), left shift f(x) by a

anonymous · Answer

ohhh okay that's what i was just making sure i remembered! Thanks :D

hartnn · Answer

welcome ^_^