Which of the following transformed functions has been horizontally stretched?

Question

A) 0.5f(x)

B) f(2x)

C) f(0.5x)

D) 2f(x)

Answer 1

The correct answer is C) f(0.5x).

A) 0.5f(x) is a vertical stretch by a factor of 0.5
B) f(2x) is a horizontal compression by a factor of 2
C) f(0.5x) is a horizontal stretch by a factor of 2
D) 2f(x) is a vertical stretch by a factor of 2