Question

What is a function? And what are some examples?

Answer 1

a function is a special type of relation that can be used to make predictions

Answer 2

as a result; you do one thing, and can expect only one thing as a result

Answer 3

a function from say: M to N maps all of the elements of M onto a unique element in N

Answer 4

such that:

x in M = f(x) in N

Answer 5

opps, not a function lol

Answer 6

2 is not mapped

and if we pick 1, do we get a single outcome? or do w ehave to choose?

Answer 7

A function is a set of ordered pairs in which no two ordered pairs have the same first number.

Answer 8

they can have the same first number as long as they have the same second number; but sets tend to be properly written such that you discard duplicates

Answer 9

thanks

Answer 10

yw

Answer 11

http://www.mathsisfun.com/sets/function.html