In this case the answer is very simple. .
Step 01:
Data
{ (1, 2) , (2,9) , (2,3) , (7,0)}
Step 02:
The domain is reflected on the x-axis
The domain would be:
(1,7)
The range is reflected on the y-axis
The range would be:
(0,9)
Step 03:
It is not a function because when drawing a vertical line it cuts the graph at more than one point.
That is the complete solution.
