Question

Please Help me Find and An Easy And Simple Way To Find a Function?

Answer 1

Example?

Answer 2

Which Relationship is a function?

Answer 3

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

Answer 4

So it clearly cannot be D

Answer 5

Okay, this is simple. A function has to pass a vertical line test, which means that there can't be repeats of x values. So, the choice that has no repeats of x is B
A has two 2's and two 3's, so it can't be A.
B has no repeats.
C has all 4's.
D has two 5's.

Answer 6

@Mertsj is right.

Answer 7

Thank you SO Much :D