Direct Variation
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Standards-aligned
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15 questions
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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. It can be expressed as y = kx, where k is a non-zero constant.
2.
FLASHCARD QUESTION
Front
What does the graph of a direct variation look like?
Back
The graph of a direct variation is a straight line that passes through the origin (0,0).
Tags
CCSS.8.EE.B.5
3.
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.
4.
FLASHCARD QUESTION
Front
If y varies directly with x and k = 2, what is the equation?
Back
The equation is y = 2x.
5.
FLASHCARD QUESTION
Front
How can you determine if a relationship is a direct variation?
Back
A relationship is a direct variation if the ratio of y to x is constant (y/x = k).
6.
FLASHCARD QUESTION
Front
What is the constant of variation in the equation y = 3x?
Back
The constant of variation is 3.
Tags
CCSS.HSF-LE.A.1B
7.
FLASHCARD QUESTION
Front
Is the relationship y = 1/2x a direct variation?
Back
Yes, it is a direct variation because it can be expressed in the form y = kx.
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