Answer:
See the diagram attached.
Step-by-step explanation:
First, we put the data into a table format as follows:
week (x) Â profits (y)
1 Â Â Â Â Â Â Â Â $15,000
2 Â Â Â Â Â Â Â $22,500
3 Â Â Â Â Â Â Â $22,500
4 Â Â Â Â Â Â Â $25,000
Now it is easy to see which x-value in the domain is related to each y-value on the range. Notice that two x-values (or inputs) have the same y-value (or output).