Relative to the graph of y = sin x, the graph of y = 3 sin x is changed in what way?
A)Compressed horizontally by a factor of 3
B)Shifted 3 units to the right
C)Compressed vertically by a factor of 3
D)Shifted 3 units upward
E)Shifted 3 units to the left
F)Stretched vertically by a factor of 3
G)Shifted 3 units downward
H)Stretched horizontally by a factor of 3

Question

Quizplus · Accepted Answer

Multiplying a function by a constant k stretches or compresses the graph vertically by a factor of k. In this case, multiplying y = sin x by 3 gives us y = 3 sin x, which vertically stretches the graph by a factor of 3.

Relative to the Graph of Y = Sin X, the Graph