Question 206010
A relation is a function if for every x in the domain, there correponds one and only value of y in the range.

Domain: {-3,1,5}
Range: {0,1,2}

by inspection, every x in the domain corresponds to one and only one y: <u>it is a function</u>.

Note: Notice that the ordered pair (1,2) is repeated in the set. In a set, repetition of elements are always ignored.

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