Answer
a. $g(2)=18$
b. $g(-11)=-18$
c. Domain:- $(-\infty,\infty)$. Range:- $\{-18\}$.
Work Step by Step
The given function is
$g(x)=-18$
a.
Substitute $x=2$ into the function.
$\Rightarrow g(2)=-18$
b.
Substitute $x=-11$ into the function.
$\Rightarrow g(-11)=-18$
c.
This is a linear function with one variable.
Hence, all real number inputs will result in single output $-18$.
The domain is $(-\infty,\infty)$.
and the range is $\{-18\}$.
