Proportional Relationships in Tables
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Objective
I can determine if a table represents a proportional relationship by checking if the ratio between y and x is constant.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
2 questions
A bakery sells cookies. The table below shows the cost for different numbers of cookies. | Number of Cookies (x) | Cost (y) | |---|---| | 2 | $4 | | 4 | $8 | | 6 | $12 | | 8 | ? | What is the constant of proportionality (k)? What is the missing cost for 8 cookies? Explain how you found your answers.
A group of friends is having a car wash to raise money. The amount of money they raise is proportional to the number of cars they wash. If they wash 5 cars, they earn $25. A) Write an equation in the form y = kx that represents this relationship, where x is the number of cars washed and y is the amount of money earned. B) If the group wants to earn $150, how many cars do they need to wash? Show your work.
Part 3 of 3
Exit ticket
Quick comprehension check
“Does the table below represent a proportional relationship? Explain why or why not. | x | y | |---|---| | 1 | 5 | | 2 | 10 | | 3 | 15 | Does the table below represent a proportional relationship? Explain why or why not. | x | y | |---|---| | 2 | 3 | | 4 | 6 | | 6 | 8 | Does the table below represent a proportional relationship? Explain why or why not. | x | y | |---|---| | 3 | 6 | | 5 | 10 | | 7 | 14 |”
Sample answer included in the free materials
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