What is a proportional relationship?
Proportional Relationships

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Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.
2.
FLASHCARD QUESTION
Front
What is the constant of proportionality?
Back
The constant of proportionality (k) is the constant value that relates two proportional quantities, often represented in the equation y = kx.
3.
FLASHCARD QUESTION
Front
How do you find the unit rate?
Back
To find the unit rate, divide the quantity by the number of units. For example, if 120 miles are traveled in 2 hours, the unit rate is 120 miles ÷ 2 hours = 60 miles/hour.
4.
FLASHCARD QUESTION
Front
If Evan bought 5 pounds of bananas for $10, what is the price per pound?
Back
The price per pound is $10 ÷ 5 pounds = $2 per pound.
5.
FLASHCARD QUESTION
Front
If Christy bought 6 pounds of bananas for $9, what is the price per pound?
Back
The price per pound is $9 ÷ 6 pounds = $1.50 per pound.
6.
FLASHCARD QUESTION
Front
Who has the better deal: Evan or Christy?
Back
Christy has the better deal because she pays $1.50 per pound compared to Evan's $2 per pound.
7.
FLASHCARD QUESTION
Front
What does the equation y = kx represent?
Back
The equation y = kx represents a linear relationship where y is directly proportional to x, with k being the constant of proportionality.
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