what is the domain?what is the range? what is the relative minimum?what is the relative maximum?

In this case, we'll have to carry out several steps to find the solution.
We must analyze the graph to find the solution.
Step 01:
The domain is reflected on the x-axis and the range is reflected on the y-axis
domain: (-oo , oo)
range: (-3 , oo)
Step 02:
relative minimum:
1. (- 2.5 , -1) = ( -5/2 , -1)
2. ( 3 , -3 )
relative maximum
1. ( 0, 5)
That is the full solution.