53.2k views
2 votes
Which relations are functions ​

Which relations are functions ​-example-1
User Cactusbone
by
8.5k points

1 Answer

4 votes

The first, third, and fourth choices are functions. A relation is a function when x does not repeat. For the second choice, -4 repeats. Therefore, it is not a function. The other choices do not repeat an x-coordinate, so they are correct.

User BCran
by
7.8k points

No related questions found