Determine which relation is a function.

Question

anonymous · Answer

attachment

zzr0ck3r · Answer

its not B

Do you know about the vertical line test?

p0sitr0n · Answer

the last one is a function, since the rest of the graphs have multiple y's associated with one same x (the converse is fine)

p0sitr0n · Answer

and we assume that a function is a map that has an inverse, which means you are searching for a function that is some kind of bijection

zzr0ck3r · Answer

we do not assume a function has an inverse

example x^2

zzr0ck3r · Answer

none of these are bijections

solomonzelman · Answer

P0sitr0n, you basically gave away the answer. Please tell me you did not..... what you did is just same as bypassing the filters for inappropriate words using spaces.

(No means to hurt anyone)

zzr0ck3r · Answer

seems like they could easily code that out

solomonzelman · Answer

should if haven't