Someone please answer I'll mark BRAINLIEST AND 20 POINTS HELP HELP

Mathematics

1 answer:

marissa [1.9K]4 years ago

8 0

If a vertical line crosses the relation on the graph only once in all locations, the relation is a function. If a vertical line crosses the relation more than once, the relation is not a function. So number 18 is not a function but number 19 is a function.

Hope this helps!!

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