Question

Is the following relation a function?
x y
1 -2
1 -3
2 1
3 -2

Yes
No

Answer 1

@kraken123

Answer 2

@SACAPUNTAS

Answer 3

Does each input only give one output? :D

Answer 4

Sorry just one more I missed this.

Answer 5

Yes they all give one output, but a 2 give the same outputs

Answer 6

I think you're thinking of it in terms of \(x = f(y)\) but they are probably asking as \(y = f(x)\).

Anyway, for the input of x=1, what output do you get?

Answer 7

no its not

Answer 8

y=-2 and -3

Answer 9

Right, so... that means it's not a function.

Answer 10

Thank you

Answer 11

x= 1 has 2 values of y i.e -2 and -3, also if you look from "y" perspective then too for y=-2 we get 2 values of x. so its not a function either way