Ratios and Proportions

Flashcard
•
Mathematics
•
7th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a ratio?
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 proportion?
Back
A proportion is an equation that states that two ratios are equal.
3.
FLASHCARD QUESTION
Front
How do you find the constant of proportionality?
Back
To find the constant of proportionality, divide one quantity by the other in a proportional relationship.
4.
FLASHCARD QUESTION
Front
What does it mean if a graph passes through the origin?
Back
If a graph passes through the origin, it indicates a proportional relationship between the variables.
5.
FLASHCARD QUESTION
Front
What is the formula for finding unit rate?
Back
The unit rate is found by dividing the quantity by the number of units, expressed as 'quantity per unit'.
6.
FLASHCARD QUESTION
Front
If Craig earns $37 for 4 hours, what is his hourly rate?
Back
$9.25 per hour.
7.
FLASHCARD QUESTION
Front
What is the significance of the y-intercept in a proportional relationship?
Back
In a proportional relationship, the y-intercept should be zero, indicating that when the independent variable is zero, the dependent variable is also zero.
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