A.2D Redo

Flashcard
•
Mathematics
•
9th Grade
•
Hard
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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
If y varies directly with x, and y = 15 when x = 5, what is the direct variation equation?
Back
y = 3x
3.
FLASHCARD QUESTION
Front
If y varies directly with x, and y = 3 when x = 9, what is the value of x when y = 18?
Back
x = 54
4.
FLASHCARD QUESTION
Front
If y varies directly with x, and y = 9 when x = 3, what is the value of x when y = 27?
Back
x = 9
5.
FLASHCARD QUESTION
Front
If y varies directly with x, and y = 3 when x = 21, what is the direct variation equation?
Back
y = 1/7x
6.
FLASHCARD QUESTION
Front
If y varies directly with x, and y = 55 when x = 5, what is the value of y when x = 9?
Back
y = 99
7.
FLASHCARD QUESTION
Front
What is the constant of variation in direct variation?
Back
The constant of variation (k) is the ratio of y to x in a direct variation equation, represented as k = y/x.
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