What is a proportional relationship?
Topic 3 Test: Proportional Relationships (2024)

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•
Mathematics
•
7th 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
How do you solve a proportion?
Back
To solve a proportion, you can cross-multiply the two ratios and then solve for the unknown variable.
3.
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).
4.
FLASHCARD QUESTION
Front
What is the constant of proportionality?
Back
The constant of proportionality is the constant ratio between two proportional quantities, often represented as 'k'.
5.
FLASHCARD QUESTION
Front
If 6 people cost $39, how much does 1 person cost?
Back
$39 ÷ 6 = $6.50 per person.
6.
FLASHCARD QUESTION
Front
If 1 person costs $6.50, how much do 9 people cost?
Back
$6.50 × 9 = $58.50.
7.
FLASHCARD QUESTION
Front
What is the formula for finding the constant of proportionality?
Back
k = y/x, where y is the dependent variable and x is the independent variable.
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