Question

Each answer choice below represents a relation by a set of ordered pairs. In which of the answer choices is the relation a function? Select all correct answers. Select all that apply:

{(9,14),(4,−3),(8,11),(8,9)}

{(−5,−3),(−3,2),(3,3),(9,3)}

{(3,3),(2,−2),(0,10),(2,2)}

{(−5,−3),(6,−4),(9,−5),(−2,−5)}

{(7,−1),(4,7),(0,−1),(2,14)}

Answer 1

{(−5,−3),(−3,2),(3,3),(9,3)}

{(−5,−3),(6,−4),(9,−5),(−2,−5)}

{(7,−1),(4,7),(0,−1),(2,14)}

Explanation:

These 3 answer choices all represent functions since the x-values only correspond to one y-value.

The other answer choices are not functions because some of the x-values correspond to more than one y-value.