Friday

August 22, 2014

August 22, 2014

Posted by **christin** on Sunday, October 20, 2013 at 3:42pm.

if f(x)= 3x+1 and g(x)=x+2

find (f+g)(x) and calculate (f+g)(1)

a little confused can some one please help me thank you

- algebra functions -
**Steve**, Sunday, October 20, 2013 at 5:12pm(f+g) just means to add f and g. Since they're both functions of x, that's why the unfamiliar notation.

(f+g)(x) = f(x)+g(x) = (3x+1)+(x+2) = 4x+3

so, (f+g)(1) = 4(1)+3 = 7

or, you could evaluate f(1)+g(1) = 4+3

**Related Questions**

algebra functions - can someone please check my answer For each problem, ...

algebra functions check my answer - For each problem, construct two composite ...

algebra functions - how do i calculate this if f(x)= 3x+1 and g(x)=x+2 find (fg...

Algebra.. - Check These Answers Please? f(x)= x^2+3 ; g(x)=3x-1 1. (f+g) =x^2+3x...

Algebra 2 Functions - Use these functions: f(x)=3x-2 g(x)=2 h(x)=4x 1. What is f...

Algebra - Graph and label the following two functions: f(x)=(x^2+7x+12)/(x+4) g(...

Calculus - Find the sum and difference functions f + g and f – g for the ...

Pre-Calculus - Operations with Functions write the function below as either a ...

Algebra - How do I find the domain and range of the functions? 1. f(x)=2/3x - 4 ...

College Algebra! help! - Consider the following functions f(x)= (7x+8)/(x+3) and...