Answer:
Relation 1: function // Relation 2: not a function
Step-by-step explanation:
A function means that the x value can only be used once.
For example, in relation 1, you can clearly see that each domain only has one range:
(rock, 7)
(desk, 4)
(sky, 4)
(paper, 4)
(door, 4)
However, in relation 2, we can see that the domain 4 has two ranges, therefore making it NOT a function.
(7, 0)
(4, -2)
(4, 5)
(-6, 0)
(0, 5)
You can see that the domain 4 has been used twice which makes it not a function.
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Hope this helps! I hope I'm not too late with my answer and I apologize if I got this incorrect.
