[tex]D=(-\infty,\infty),\:R=\lbrack-5\rbrack[/tex]
1) We can see that y=-5 is a constant function, graphically represented as a horizontal line passing through the point (0,-5).
2) Since this linear function has no restriction, no holes. We can tell its Domain is:
[tex]D=(-\infty,\infty)[/tex]
3) When it comes to Range. We can tell that there is a single output is -5, so we can tell the Range of this function is:
[tex]R=\lbrack-5\rbrack[/tex]
