Direct variation
Flashcard
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is direct variation?
Back
A proportional linear relationship where one variable is a constant multiple of another.
2.
FLASHCARD QUESTION
Front
What is the general form of a direct variation equation?
Back
y = kx, where k is the constant of variation.
3.
FLASHCARD QUESTION
Front
If y varies directly as x, what happens to y when x is doubled?
Back
y also doubles.
4.
FLASHCARD QUESTION
Front
What does the constant of variation (k) represent in direct variation?
Back
It represents the ratio of y to x.
Tags
CCSS.HSF-LE.A.1B
5.
FLASHCARD QUESTION
Front
Which of the following represents a direct variation: y = 3x or y = 3x + 2?
Back
y = 3x represents a direct variation.
6.
FLASHCARD QUESTION
Front
If k = 4 in the equation y = kx, what is the value of y when x = 5?
Back
y = 20.
Tags
CCSS.HSF.IF.A.1
7.
FLASHCARD QUESTION
Front
How can you determine if a set of points represents a direct variation?
Back
Check if the ratio of y to x is constant for all points.
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