`f(x)=3x+1`

`g(x) = x+2`

`(f+g)(x)= f(x)+g(x)=(3x+1)+(x+2)=4x+3`` `That's how you find the sum of two functions of x.## We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

- 30,000+ book summaries
- 20% study tools discount
- Ad-free content
- PDF downloads
- 300,000+ answers
- 5-star customer support

Already a member? Log in here.

Are you a teacher? Sign up now