the answer to the question and also please give the domain interval notation and also the range interval notation. whether If 1/2x-4 is a constant function?

Given:
A function is given as
[tex]f(x)=\frac{1}{2}x-4[/tex]Required:
We want to graph the function and also find domain and range for the same
Explanation:
Graph of function is as below
Function is not constant
Domain of the given function is
[tex]\left(-\infty \:,\:\infty \:\right)[/tex]Range of given function is
[tex]\left(-\infty \:,\:\infty \:\right)[/tex]Final answer:
[tex]\begin{gathered} \left(-\infty \:,\:\infty \:\right) \\ \left(-\infty \:,\:\infty \:\right) \end{gathered}[/tex]