Question

Which table represents a function?

Input (x)
-2 0
Output (y) 3 3 6
2
4
6
6
Input (2)
Output (y) -50 5 10
9
-5 -5 -5 -5 -5
15
Input (x)
Output (y)
-4-2-2
6
10
8 10
-1
0
12 14
Input (x)
20 30 30
Output (y) -5-6-7-8-9
40

Answer 1

see attached (upper left)

Explanation:

You want to know which of the four tables shown represents a function.

Function

A function maps an input value to a single output value. When a relation is represented by a table or set of ordered pairs, it will be a function if and only if no x-value (input) is repeated.

The attached table represents a function. (upper left)

<95141404393>