Proportions Vocabulary

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•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the ratio that compares the change in y (dependent variable) to the change in x (independent variable)?
Back
rate of change
2.
FLASHCARD QUESTION
Front
What is the rational number that describes the proportional relationship between two variables, represented by the letter k in the equation y=kx?
Back
constant of proportionality
3.
FLASHCARD QUESTION
Front
What is an equation in which two ratios are set equal to one another?
Back
proportion
4.
FLASHCARD QUESTION
Front
What is the result of multiplying the numerator of one ratio by the denominator of another, and if the products are equal, the ratios are proportional?
Back
Cross Products Property of Proportions
5.
FLASHCARD QUESTION
Front
What is a rate for ONE of something, always written as a ratio with a denominator of ONE?
Back
unit rate
6.
FLASHCARD QUESTION
Front
What is the formula for calculating the constant of proportionality in a direct variation?
Back
k = y/x
7.
FLASHCARD QUESTION
Front
How can you determine if two ratios are proportional using cross products?
Back
If the cross products are equal, the ratios are proportional.
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