
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 in the equation y = 18.50x?
Back
The constant of proportionality is 18.50.
2.
FLASHCARD QUESTION
Front
How can you identify a proportional relationship from a table of values?
Back
A proportional relationship can be identified if the ratio of y to x is constant for all pairs of values.
3.
FLASHCARD QUESTION
Front
What does it mean for a relationship to be proportional?
Back
A proportional relationship means that as one quantity increases, the other quantity increases at a constant rate.
4.
FLASHCARD QUESTION
Front
If a gas tank costs $46.80 to fill and holds 13 gallons, how do you find the price per gallon?
Back
Divide the total cost by the number of gallons: $46.80 / 13 = $3.60 per gallon.
5.
FLASHCARD QUESTION
Front
What is the formula to calculate unit cost?
Back
Unit cost = Total cost / Number of units.
6.
FLASHCARD QUESTION
Front
If you ordered 15 pizzas for $97.50, how do you calculate the cost per pizza?
Back
Divide the total cost by the number of pizzas: $97.50 / 15 = $6.50 per pizza.
7.
FLASHCARD QUESTION
Front
What is the significance of the slope in a proportional relationship graph?
Back
The slope represents the constant of proportionality, indicating how much y changes for a unit change in x.
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