Question

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with f(2x)?

A) shifts the line 2 units left
B) shifts the line 2 units right
C) increases the slope of the line by a factor of 2
D) decreases the slope of the line by a factor of 2

Answer 1

f(x)=x

g(x)=f(2x)=2x=(2)x

The slope doubles.

Answer: c) increases the slope of the line by a factor of 2