Which of the following represents a function?
x -14 -5 -14 4
y 18 18 24 17

x -14 -5 -2 -2
y 18 16 18 17

x -14 -5 -2 4
y 18 16 24 18

x -14 -5 -2 -5
y 18 16 18 17

Question

Which of the following represents a function?
x	-14	-5	-14	4
y	18	18	24	17


x	-14	-5	-2	-2
y	18	16	18	17


x	-14	-5	-2	4
y	18	16	24	18


x	-14	-5	-2	-5
y	18	16	18	17

rebecca · Answer

Make sure your x's don't repeat

rebecca · Answer

http://prntscr.com/b6ixm1 example this isnt a function because it repeats

shootingstar28 · Answer

A?

rebecca · Answer

Does A have a repeating x?

shootingstar28 · Answer

D?

rebecca · Answer

I dont know, you tell me. Do you see a repeating x?

shootingstar28 · Answer

I don't know... :(

rebecca · Answer

Look at my example i gave you. Do you see how there are two -2? If there are repeating x values that makes it NOT a function.

shootingstar28 · Answer

It doesn't have a repeating X.. Right?

rebecca · Answer

A function does NOT have repeating x's

shootingstar28 · Answer

C then since nothing is repeating?

rebecca · Answer

Correct C. http://prntscr.com/b6iye5