Question

Hello! I would like my answer to be checked. ↓

Determine which relation is a function.

A. http://static.k12.com/calms_media/media/1348000_1348500/1348055/1/cfa6c5ea717fc9d2fdaf4cf2669466e9a607e439/116039a.jpg
B. http://static.k12.com/calms_media/media/1348000_1348500/1348056/1/636c9e4e4c209402edf52d578d76f7b909393849/116039b.jpg
C. http://static.k12.com/calms_media/media/1348000_1348500/1348057/1/d42b2e86f6ad30f9d8561318d1b7703097805bcd/116039c.jpg
D. http://static.k12.com/calms_media/media/1348000_1348500/1348058/1/17ab62b94b70aa41d018efebe061a64374c81d1d/116039d.jpg

My answer is D.

Answer 1

Correct.
D is the only choice that passes the vertical-line test.

Answer 2

each value must have only one image in a function so its D

Answer 3

I knew it! Thanks! @mathstudent55 \[\huge ☺☻☺☻☺\]

Answer 4

Thanks! @hamidic \[\huge ☻☺☻☺☻\]

Answer 5

You're welcome.