Determining Proportional Relationships
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a proportional relationship?
Back
A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.
Tags
CCSS.7.RP.A.2A
2.
FLASHCARD QUESTION
Front
How do you find the constant of proportionality?
Back
To find the constant of proportionality (k), divide one quantity by the other when they are in a proportional relationship.
Tags
CCSS.7.RP.A.2B
3.
FLASHCARD QUESTION
Front
If 14 sticks of pepperoni are needed for 28 pizzas, how many sticks are needed for 1 pizza?
Back
To find the number of sticks needed for 1 pizza, divide 14 sticks by 28 pizzas, which equals 0.5 sticks per pizza.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
4.
FLASHCARD QUESTION
Front
If a car travels 420 miles in 8 hours, what is its speed in miles per hour?
Back
Speed = Distance / Time = 420 miles / 8 hours = 52.5 miles per hour.
Tags
CCSS.6.RP.A.3B
5.
FLASHCARD QUESTION
Front
What does it mean if a graph is proportional?
Back
A graph is proportional if it passes through the origin (0,0) and has a constant slope.
Tags
CCSS.7.RP.A.2D
6.
FLASHCARD QUESTION
Front
If k = 3, what does this mean in a proportional relationship?
Back
It means that for every unit increase in the independent variable, the dependent variable increases by 3 units.
Tags
CCSS.7.RP.A.2B
7.
FLASHCARD QUESTION
Front
What is the formula for a proportional relationship?
Back
The formula is y = kx, where k is the constant of proportionality.
Tags
CCSS.7.RP.A.2C
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