Answer:
[tex]0\leq x \leq12[/tex], where, [tex]x\geq 0[/tex]
Step-by-step explanation:
Domain of a graph is the set of all possible values of [tex]x[/tex]. It is the independent variable and is plotted along the [tex]x[/tex] axis.
From the graph,
The number of cars washed is along the [tex]x[/tex] axis. So, the domain includes the possible values for the number of cars washed.
The starting value of the graph is at point (0,-20) and the end point is (12,40)
So, the possible values of x varies from 0 to 12.
Therefore, the domain of the graph is:
[tex]0\leq x \leq12[/tex], where, [tex]x\geq 0[/tex]
