Proportions Preview
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
2.
FLASHCARD QUESTION
Front
How can you determine if two ratios form a proportion?
Back
Two ratios form a proportion if the cross products are equal.
3.
FLASHCARD QUESTION
Front
What is the cross product of the ratios a/b and c/d?
Back
The cross product is ad and bc; if ad = bc, then a/b = c/d is a proportion.
4.
FLASHCARD QUESTION
Front
What does it mean for a graph to be proportional?
Back
A graph is proportional if it is linear and passes through the origin (0,0).
5.
FLASHCARD QUESTION
Front
What is the slope of a proportional relationship?
Back
The slope of a proportional relationship is constant and can be calculated as rise over run.
6.
FLASHCARD QUESTION
Front
What is the equation of a proportional relationship?
Back
The equation of a proportional relationship can be expressed as y = kx, where k is the constant of proportionality.
7.
FLASHCARD QUESTION
Front
What is the constant of proportionality?
Back
The constant of proportionality is the ratio of y to x in a proportional relationship, represented by k.
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