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Table to equation · grades 6–7

Write Proportional Equations from Tables

Move from matching values to a general rule. Each table has one exact constant of proportionality, and the answer key states the relationship in the form y = kx.

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Write y = kx from Tables

Table to y = kx · Small whole numbers · Seed 261501

1.

Write an equation in the form y = kx for this table.

x1245y361215
2.

Write an equation in the form y = kx for this table.

x2345y8121620
3.

Write an equation in the form y = kx for this table.

x2345y46810
4.

Write an equation in the form y = kx for this table.

x1345y26810
5.

Write an equation in the form y = kx for this table.

x1235y36915
6.

Write an equation in the form y = kx for this table.

x2345y10152025
7.

Write an equation in the form y = kx for this table.

x1235y5101525
8.

Write an equation in the form y = kx for this table.

x1345y391215
9.

Write an equation in the form y = kx for this table.

x1245y24810
10.

Write an equation in the form y = kx for this table.

x1345y6182430
No fake precision: tables, graph points, equations, and double number lines come from the same exact whole-number constant of proportionality. Better Buy problems compare integer cents per item, so a winner is never chosen from a rounded display value.
Teaching note 1

Find k first; then substitute it into y = kx.

Teaching note 2

Use one table row to verify that the equation produces the listed y-value.

Teaching note 3

The variable names are intentionally consistent so students can focus on the relationship rather than a notation switch.

All proportional relationship skills →

Move among tables, equations, graphs, double number lines, and Better Buy decisions in one exact generator.

Return to ratio foundations →

Practice simplified ratios, equivalent tables, unit rates, proportions, and percent proportions.

Frequently asked questions

What does k represent?

It represents the amount of y for one unit of x—the constant rate or unit rate.

Can a proportional equation have a plus sign?

No. A relationship in the form y = kx passes through the origin; an added constant represents a different situation.