Question

Which relation is a function?

Answer 1

https://static.k12.com/calms_media/media/243500_244000/243589/1/2231af4e069a985c07b54cc1ccaee221ffe20717/VHS_PA_S2_02_L214_L314_UT_Q6b.gif

Answer 2

https://static.k12.com/calms_media/media/243500_244000/243588/1/6084b4a1e2da4017b5c4ee03e0ca3d7481f5cd5e/VHS_PA_S2_02_L214_L314_UT_Q6a.gif

Answer 3

https://static.k12.com/calms_media/media/243500_244000/243591/1/995c049dff7ac7d6ece641f374948644f14061e7/VHS_PA_S2_02_L214_L314_UT_Q6d.gif

Answer 4

https://static.k12.com/calms_media/media/243500_244000/243590/1/172e305112dd80ece4ce2adc0856375501d285b1/VHS_PA_S2_02_L214_L314_UT_Q6c.gif

Answer 5

@Rebecca

Answer 6

Ever heard of the vertical line test?

Answer 7

no

Answer 8

Well that's what we are gonna be using. Basically, if you move your pencil vertically across the graph it cant hit more than one point.

Answer 9

ok

Answer 10

http://prntscr.com/b6g6pj Therefore this is NOT a function because it hits more than one point.

Answer 11

Which graph is a function?

Answer 12

c?

Answer 13

Correct!

Answer 14

so what next

Answer 15

That's it. C is your answer. C is a function.

Answer 16

oh thank you :)

Answer 17

No problem!