Question

Can someone tell me exactly why there can't be two y-values for one x-value in a function?

Answer 1

Because that one guy who wrote that one book said so... lol just kidding.. I have no idea

Answer 2

lol thanks

Answer 3

Think of the simple function f(x,y) = x+y


Note: it's perfectly possible to have two inputs


This is a fancy version of the addition operation we're all used to.


So for instance, f(1, 2) = 1+2 = 3


But if f(1,2) = some other number, then the plus operator is not well defined



In other words, we cannot predict what the result of 1+2 is if more than one output occurs



So that is why one output is very important

Answer 4

can you explain it like in a graph or something? no? because I didn't quite understand. I mean you do know what you're talking about hehe

Answer 5

look at the power point you will see it clearly explained