Explain how the graph of f can be obtained from the graph of y = 
or y = 
. f(x) = 
A. Shift the graph of y = 
to the right 7 units.
B. Shift the graph of y = 
to the left 7 units.
C. Stretch the graph of y = 
vertically by a factor of 7.
D. Stretch the graph of y = 
vertically by a factor of 7 and reflect across the x-axis or the y-axis.
Answer: C
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C. y = 
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