What is Direct Variation?
Direct and Inverse Variation

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•
Mathematics
•
8th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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 the constant of variation.
2.
FLASHCARD QUESTION
Front
What is Inverse Variation?
Back
Inverse variation is a relationship between two variables where the product of the two variables is a constant. It can be expressed as y = k/x, where k is the constant of variation.
3.
FLASHCARD QUESTION
Front
How do you determine if a table represents Direct Variation?
Back
A table represents direct variation if the ratio of y to x is constant for all pairs of values.
4.
FLASHCARD QUESTION
Front
How do you determine if a table represents Inverse Variation?
Back
A table represents inverse variation if the product of x and y is constant for all pairs of values.
5.
FLASHCARD QUESTION
Front
What is the constant of variation in Direct Variation?
Back
The constant of variation in direct variation is the ratio k, which can be found by dividing y by x (k = y/x).
6.
FLASHCARD QUESTION
Front
What is the constant of variation in Inverse Variation?
Back
The constant of variation in inverse variation is the product k, which can be found by multiplying x and y (k = xy).
7.
FLASHCARD QUESTION
Front
If y varies directly as x and y = 10 when x = 2, what is y when x = 5?
Back
y = 25.
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