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 proportional linear relationship.
2.
FLASHCARD QUESTION
Front
If y varies directly as x, when y = 10 and x = 2, what is y when x = 3?
Back
15
3.
FLASHCARD QUESTION
Front
A direct variation represents a proportional relationship. Which table represents a direct variation?
Back
(Example Table: x: 1, 2, 3; y: 2, 4, 6) - y is proportional to x.
4.
FLASHCARD QUESTION
Front
Which tables show a direct variation?
Back
(Example Tables: Table 1: x: 1, 2, 3; y: 2, 4, 6; Table 2: x: 1, 3, 5; y: 3, 9, 15 - only Table 1 shows direct variation.)
5.
FLASHCARD QUESTION
Front
A direct variation uses a scale factor. Which applies a scale factor of 5?
Back
y = 5x
6.
FLASHCARD QUESTION
Front
What is the general form of a direct variation equation?
Back
y = kx, where k is the constant of variation.
7.
FLASHCARD QUESTION
Front
If k = 3 in the equation y = kx, what is y when x = 4?
Back
y = 12.
Tags
CCSS.HSF-LE.A.1B
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