Math 180 Proportional and Linear Relationships B2
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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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 is constant.
2.
FLASHCARD QUESTION
Front
What does the equation y = kx represent?
Back
This equation represents a direct variation where y varies directly with x, and k is the constant of proportionality.
3.
FLASHCARD QUESTION
Front
If y = 25x, what does the number 25 represent?
Back
The number 25 represents the rate at which y increases for each unit increase in x.
4.
FLASHCARD QUESTION
Front
Why can't Justin purchase 2.2 paintbrushes?
Back
Because paintbrushes can only be bought in whole numbers, not fractions.
5.
FLASHCARD QUESTION
Front
What is the solution to the equation 410 = 25x?
Back
The solution is x = 16.4, meaning Max can afford 16 full canvases.
6.
FLASHCARD QUESTION
Front
How do you find the number of items you can buy with a budget?
Back
Use the equation y = px, where p is the price per item and x is the number of items.
7.
FLASHCARD QUESTION
Front
What does the slope of a line in a graph represent in a proportional relationship?
Back
The slope represents the constant rate of change between the two variables.
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