Question

Think of an example of a relation not in the book that is a function. Also think of an example of a relation that is not a function, and explain why. Your examples do not have to be mathematical

Answer 1

Do you know the definition of a function?

Answer 2

is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output.

Answer 3

Well that's one way of putting it. Every x has one y (or less) in a function. In a non-function, at least some x's have two y's or more

Answer 4

See if you can think of any graphs that fit either of them