Answer
The graph is shown below.
Work Step by Step
The given linear equation is
$\Rightarrow f(x)=-2$
For all values of the the values of the function is $-2$.
Let the $x-$ coordinates be $-2,0,2$.
The points are
$A=(-2,-2)$
$B=(0,-2)$
$C=(2,-2)$
Plot theses three points and draw a straight line.
