Question

Given two functions f(x)=2x+4 and g(x)=−1/5x−3 , what is the function rule for (f+g)(x) ?

Answer 1

The answer is (f+g)(x)=9/5x+1

Explanation:

Answer 2

The definition is pretty simple:

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

So, we only have to sum the expressions:

`f(x)+g(x) = 2x+4 - (1)/(5)x-3 = (9)/(5)x+1`