Question

do the (input, output) pairs in the table represent a function? there is ? output for each input. that means the (input, output) pairs ? show a function.

Explanation:

Step1: Recall function definition

A function has exactly one output for each input.

Step2: Check table pairs

For input 5, output is 10; for 6, 12; for 7, 14. Each input has one - and only one - output.

Answer:

There is exactly one output for each input. That means the (input, output) pairs show a function.