Which relation is a function? (PICTURE / QUESTION INCLUDED)

Question

asked Feb 15, 2019 46.6k views

1 Answer

Dvijparekh · Answer 1 · 2019-02-21T14:00:07+0000

A relation is a function if there is only 1 Y value for every X value.

If there are 2 or more dots on an X value, it cannot be a function.

The correct graph is the lower left one, because all the dots are separated.