Since, Domain is x value of order pair. Hence domain are {8, -8, 9, 8} and Range is y value of order pair. so that range are {7, 10, 13}
The input value is the first coordinate in an ordered pair. The domain is the set of the first coordinates of the ordered pairs.
The output value is the second coordinate in an ordered pair. The range is the set of the second coordinates of the ordered pairs.
So, for order pairs {(8, 7) (-8, 7) (9, 10) (8,13)}
Domain are {8, -8, 9, 8}
Range are {7, 10, 13}
Since, A relation is a function only if it relates each element in its domain to only one element in the range.
So, given relation represents a function.
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