Question

Consider the following functions.f(x)= x and g(x) = x + 13Step 1 of 4: Find (f + g)(-3).

Answer 1

You have the following functions:

$\begin{gathered} f(x)=x \\ g(x)=x+13 \end{gathered}$

In order to calculate (f+g)(-3), proceed as follow:

- Sum f(x) and g(x):

$(f+g)(x)=f(x)+g(x)=x+x+13=2x+13$

- Next, replace x=-3 into the previous result and simplify:

$(f+g)(-3)=2(-3)+13=-6+13=7$

Hence, the result is (f+g)(-3) = 7