What is the domain and range of {(3,7),(3,8),(3,-2),(3,4),(3,1)}?

1 Answer
Alan P.
Aug 10, 2015

Domain: x = 3
Range: y in {7, 8, -2, 4, 1}

Explanation:

Assuming the given set represents values of (x,y) where x is being mapped into y.

color(white)("XXXX")The domain is the set of all valid values for x.

color(white)("XXXX")The range is the set of all valid values for y

Note: This explicit set mapping is not a function (since the same value of x maps into multiple values of y)

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