Question

If f(x)=2x/2x+1 and g(x)=1/2x+1, find f(x) + g(x)

A. 2x+1/4x+2
B. 1
C. (2,-52)
D. 1/2

Answer 1

`f(x) + g(x) = (2x)/(2x + 1) + (1)/(2x + 1)`

• Set up

`f(x) + g(x) = (2x + 1)/(2x + 1)`

• Since we have common denominators among the terms, we can simply add the numerators

`f(x) + g(x) = 1`

• Simplify

The answer is Choice B, or 1.