
Constant of Proportionality Review
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
How do you find the unit rate?
Back
To find the unit rate, divide the total quantity by the number of units. For example, if there are 624 calories in 3 servings, the unit rate is 624 ÷ 3 = 208 calories per serving.
3.
FLASHCARD QUESTION
Front
What does a proportional graph look like?
Back
A proportional graph is a straight line that passes through the origin (0,0). The slope of the line represents the constant of proportionality.
4.
FLASHCARD QUESTION
Front
In the equation y = kx, what does 'k' represent?
Back
'k' represents the constant of proportionality, which is the ratio of y to x.
5.
FLASHCARD QUESTION
Front
If the constant of proportionality is 9, what is the relationship between x and y in the equation y = 9x?
Back
For every unit increase in x, y increases by 9 units.
6.
FLASHCARD QUESTION
Front
What is the unit rate of 80 miles in 4 hours?
Back
The unit rate is 80 ÷ 4 = 20 miles per hour.
7.
FLASHCARD QUESTION
Front
How can you determine if a table of values is proportional?
Back
A table of values is proportional if the ratios of corresponding y-values to x-values are constant.
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