Question

What are the outputs of the function?

–1, 0, 1, 2

–1, 0, 3

–1, 0, 1, 2, 3
Input and Output of a Function

Answer 1

I don’t have the function or mapping you’re working from, so I can’t pick which list is the correct set of outputs. Can you paste the function rule, table, or mapping diagram?

How to decide it yourself:
- The outputs (the range) are all values that the function actually produces.
- If you have ordered pairs (input, output) or a mapping diagram, take the second element of each pair (or everything an arrow points to) and list each value once.
- If you have a formula and a specified domain, compute f(x) for each input in the domain; the distinct results are the outputs.

Examples:
- If the mapping pairs are {(a, −1), (b, 0), (c, 1), (d, 2)} the outputs are −1, 0, 1, 2.
- If the pairs are {(a, −1), (b, 0), (c, 3)} the outputs are −1, 0, 3.
- If the pairs are {(a, −1), (b, 0), (c, 1), (d, 2), (e, 3)} the outputs are −1, 0, 1, 2, 3.

Send the function or mapping and I’ll tell you which set is correct.