Question

There are eight steps to the problem. First find then determine the domain for each function.

Answer 1

Solution:

Given the functions:

$\begin{gathered} f(x)=3x^2-9x+6 \\ g(x)=x-1 \end{gathered}$

The sum of the functions is;

$\begin{gathered} (f+g)(x)=3x^2-9x+x+6-1 \\ (f+g)(x)=3x^2-8x+5 \end{gathered}$

The domain of a function is a set of values for which the function is real and defined.

The domain of a quadratic function is always;

[tex]\begin{gathered} (-\infty,\infty) \\ -\infty