Is it a functionInput and output tables
Name: Date:
Does each table show a function? Show how you know.
1x3556y932442
2x108721y34574957
3x0101410y45462011
4x14159y12383845
5x44221y255914
6x12418y57153133
Function from a table worksheets
An input–output table is a function when every input appears with just one output. These free printable worksheets ask that of a table, where the inputs are already gathered into a row.
If they get stuck
Function from a table
The answer key prints on a separate page.
What's on this sheet
In a table the inputs sit together along the top, so half the work — collecting them — is already done, and what is left is to check whether any repeats and disagrees. That is why the table is a separate sheet from the ordered-pairs one: it is the same rule read off a different shape, and the easier of the two to scan once a child knows to look only at the input row.
Why this sheet works
Nothing here is sorted. A table whose inputs run 1, 2, 3, 4 would put any duplicate side by side and announce it, so the columns are shuffled and every sheet also carries tables that repeat an OUTPUT while staying a function — a flat run where each different hour reads the same temperature. A repeated output is allowed; only a repeated input with two answers is not.
How this one works
One question from a sheet like this one, worked a step at a time — with a sentence saying what just happened and why.
Function from a table, step by step