- Identify the independent variable (hours) and dependent variable (earnings).
- Create a table with hours (0, 1, 2, 3, 4, 5) and corresponding earnings ($0, $6, $12, $18, $24, $30).
- Plot the points from the table on a graph with hours on the x-axis and earnings on the y-axis; connect them to form a straight line through the origin.
- Write the equation y = 6x, where 6 is the constant of proportionality (unit rate).
- The constant of proportionality equals the unit rate, which is $6 per hour.
Parent Tip: Review the logic above to help your child master the concept of proportional equations worksheet.