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 a direct variation?
Back
A direct variation is a proportional linear relationship between two variables, where one variable is a constant multiple of the other.
2.
FLASHCARD QUESTION
Front
If y varies directly as x, what is the equation form?
Back
y = kx, where k is the constant of variation.
3.
FLASHCARD QUESTION
Front
What does the constant of variation (k) represent in direct variation?
Back
The constant of variation (k) represents the scale factor that relates y to x.
Tags
CCSS.HSF-LE.A.1B
4.
FLASHCARD QUESTION
Front
Which equation represents a direct variation with a scale factor of 5?
Back
y = 5x.
5.
FLASHCARD QUESTION
Front
If y = 10 when x = 2, what is the constant of variation (k)?
Back
k = 10/2 = 5.
Tags
CCSS.HSF-LE.A.1B
6.
FLASHCARD QUESTION
Front
If y = 15 when x = 3, what is the value of y when x = 4?
Back
y = 5 * 4 = 20.
Tags
CCSS.6.EE.C.9
7.
FLASHCARD QUESTION
Front
What is the graph of a direct variation?
Back
The graph of a direct variation is a straight line that passes through the origin (0,0).
Tags
CCSS.8.EE.B.5
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