Question

Select the correct answer.
Which equation matches the function shown in the graph?
3-
2-
1-
O
-1-
-2-
-3-
72
本
2TT
2
3x
y = 3sin(xπ)
O A.… y =
OB. y = 3 cos (x + π)
○ C. y = sin(x) +3
OD. y = 3 cos (x - π)