Linear Representations / Proportionality Worksheet

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y = 15x

• y = 15x + 80

• y = x + 15

• y = 80x + 15

Is the graph proportional or non proportional?

• Proportional

• Non-proportional

Derrick started a new job at McDonald's. He makes $10 per hour. Which table models his total weekly earnings in terms of the number of hours he works?

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Which table corresponds to the equation?

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Which equation represents the table?

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Which equation matches the graph? 

• y = 3x 

• y = x + 3

• y = ⅓x

• y = x - 3

Here is a graph of a line showing the amount of money paid for a new cell phone and monthly plan. What does the slope mean in this situation?

• The initial cost of the cell phone was $200.

• The initial cost of the cell phone was $300.

• The monthly plan costs $50 per month.

• The monthly plan costs $100 per month.

Here is a graph of a line showing the amount of money paid for a new cell phone and monthly plan. What does the y-intercept mean in this situation?

• The initial cost of the cell phone was $200.

• The initial cost of the cell phone was $300.

• The monthly plan costs $50 per month.

• The monthly plan costs $100 per month.

What is the equation for the line of the graph?

What is the equation for the line of the graph?