The function f(x) = |x| is transformed into g(x) = 2|x|. Wha...

Question

The function f(x) = |x| is transformed into g(x) = 2|x|. What is the transformation?

A

Vertical stretch by a factor of 2

B

Vertical compression by a factor of 2

C

Horizontal stretch by a factor of 2

D

Horizontal compression by a factor of 2

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