IXL | Write a two-variable equation

Read the following description of a relationship:

Carter works at a grocery store. Every day he spends 2 hours stocking shelves and the rest of his workday bagging groceries.

Let

represent the number of hours Carter works in a day and

represent the number of hours he spends bagging groceries.

Complete the equation that represents the relationship between

and

w	c
4	2
5	3
6	4
7	5

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ref_doc_title.

Learn with an example

question

Read the following description of a relationship:

In a board game, the player who makes the last move receives a 7-point bonus for ending the game.

Let

represent the score before the endgame bonus and

represent the final score.

Complete the equation that represents the relationship between

and

s	f
5	12
6	13
7	14
8	15

solution

Read the description of the relationship between the score before the endgame bonus,

and the final score,

In the board game, the player who makes the last move receives a 7-point bonus for ending the game.

In this relationship,

is the input, and

is the output. So, you can find

by adding 7 to

Express this relationship as an equation.

You can use the table to check your answer.

s	f
5	12
6	13
7	14
8	15

In each row of the table, plug the value from the

column into the equation. See if you get the value in the

column.

s	s + 7	f
5	5 + 7 = 12	12
6	6 + 7 = 13	13
7	7 + 7 = 14	14
8	8 + 7 = 15	15

The values in the

column are the same as the values in the

column.

The equation for this relationship is:

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Teacher tools

Work it out

Not feeling ready yet? These can help:

MM.9Graph a two-variable relationship

MM.6Complete a table for a two-variable relationship

O.12Multiplication input/output tables: find the rule

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