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The range is the set of y-values for which the function is defined.
The relation (function) shown has 4 points.
The y-values of the 4 points are:
-3, -2, 0, and 3
If we draw a rough sketch connecting the points, we have:
If we can draw a vertical line and it doesn't cross the graph more than 1 place at any point, it is a function.
So, you see this is a FUNCTION.
Correct Answer is C
