Direct Variation

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•
Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is direct variation?
Back
Direct variation is a relationship between two variables where one variable is a constant multiple of the other, expressed as y = kx, where k is the constant of variation.
2.
FLASHCARD QUESTION
Front
What type of relationship is a direct variation?
Back
Proportional.
3.
FLASHCARD QUESTION
Front
What does the constant of variation represent in a direct variation equation?
Back
The constant of variation represents the rate at which one variable changes in relation to another. It is the factor by which one variable is multiplied to obtain the other.
4.
FLASHCARD QUESTION
Front
What is the equation for direct variation?
Back
The equation for direct variation is y = kx, where k is the constant of variation.
5.
FLASHCARD QUESTION
Front
What does 'k' stand for in the direct variation equation?
Back
'k' stands for the constant of proportionality.
6.
FLASHCARD QUESTION
Front
If y = 3x, what is the constant of variation?
Back
The constant of variation is 3.
7.
FLASHCARD QUESTION
Front
If the equation is y = 5x, what does this tell you about the relationship between y and x?
Back
This indicates that y varies directly with x, and for every unit increase in x, y increases by 5.
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