
Constant of Proportionality
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the constant of proportionality?
Back
The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.
2.
FLASHCARD QUESTION
Front
Write an equation that represents the relationship between weight (x) and cost (y) if the cost is 4 times the weight.
Back
y = 4x
3.
FLASHCARD QUESTION
Front
What is a unit rate?
Back
A unit rate is a comparison of two different quantities when they are combined together. It expresses how many units of one quantity correspond to one unit of another quantity.
4.
FLASHCARD QUESTION
Front
If a box of cereal costs $3.59 for 30 oz, what is the unit rate per ounce?
Back
12 cents per ounce.
5.
FLASHCARD QUESTION
Front
How do you find the constant of proportionality from a table of values?
Back
Divide the value of y by the value of x for any pair of corresponding values. If the ratio is constant, that value is the constant of proportionality.
6.
FLASHCARD QUESTION
Front
What does it mean if two quantities are proportional?
Back
Two quantities are proportional if they maintain a constant ratio or relationship to each other.
7.
FLASHCARD QUESTION
Front
Identify the constant of proportionality if y = 5x.
Back
k = 5
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