What is a ratio?
Ratios, Rates and Proportional Relationships

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.
2.
FLASHCARD QUESTION
Front
What is a rate?
Back
A rate is a specific kind of ratio that compares two quantities with different units, such as speed (miles per hour) or price per item.
3.
FLASHCARD QUESTION
Front
What is a proportional relationship?
Back
A proportional relationship is a relationship between two quantities where their ratio remains constant.
4.
FLASHCARD QUESTION
Front
How do you determine if two quantities are proportional?
Back
Two quantities are proportional if they can be expressed as a constant ratio, meaning that as one quantity changes, the other changes at a consistent rate.
5.
FLASHCARD QUESTION
Front
What is the constant of proportionality?
Back
The constant of proportionality is the constant value (k) that relates two proportional quantities, often represented as y = kx.
6.
FLASHCARD QUESTION
Front
What does it mean for a graph to be proportional?
Back
A graph is proportional if it is a straight line that passes through the origin (0,0).
7.
FLASHCARD QUESTION
Front
What is the unit rate?
Back
The unit rate is the ratio of two measurements in which the second quantity is one unit, often used to compare rates.
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