Which of the following transformed functions has been horizontally stretched?
A) 0.5f(x)
B) f(2x)
C) f(0.5x)
D) 2f(x)
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