GOZUNTA
Try it now
All courses Math Foundations · MF.GR.1 40 of 60
Read values, trends, and meaning from tables and coordinate graphs.

Read a value from a table

Problem
Use the input-output table to find the output when the input is \(4\).
Input and Output table Open full size
Your answer
Show answer choicesHide answer choices Work through the mathematics first, then compare your reasoning.Select the answer that matches your work.
With a free account

Take your practice with you.

Sign in on the web or in the iPhone and iPad app to use the same saved sessions and results.

Create a free account
With paid access

Separate understanding from one lucky answer.

Multiple variants of a problem type let you apply the method again before deciding that the skill is secure.

Compare plans

Hint

Start by finding the row where the Input column shows 4.

In an input-output table, the numbers in the same row go together. Once you find the right input, read across to the Output column.

Solution walkthrough

01

Locate the requested input

\[\text{input}~=~4\]

The inspected canonical input-output table has a row whose input entry is 4.

02

Stay in the same table row

\[\text{input}~4~\text{pairs}~\text{with}~\text{output}~14\]

An input-output pair is read horizontally across one row, not down a column or from a neighboring row.

03

Check the ordered pair

\[(\text{input},~\text{output})~=~(4,~14)\]

The ordered pair confirms that 14 is the output associated with input 4.

04

Report the output

\[14\]

The requested output is 14.

+

Another way

  1. Treat the table row as the ordered pair (4, 14) and select its second coordinate.

!

Common mistake

Do not report 4, which is the input, or 8 or 20 from adjacent rows. Read across the input-4 row.

Solution walkthrough video