Question

The relation is not a function. The Sutput -13 has two inputs, 9 and 3

The relation is a function. Every input has exactly one output.

The relation is not a function. The input 0 has two outputs, 11 and 5

The relation is a function. Every output has exactly one input.

Answer 1

The relation is a function. Every input has exactly one output.

Explanation:

A function is defined as having one output for every input. None of the x values are repeated in the table presented.

See the attached image. The function that describes the results is y = -2x + 5.