Direct Variation
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
If c varies directly as the square root of d, and c = 14 when d = 64, find c when d = 324.
Back
63/2
2.
FLASHCARD QUESTION
Front
Direct variation equation if y = 8 and x = 4?
Back
y=2x
3.
FLASHCARD QUESTION
Front
Direct variation equation if y = –5 and x = 7?
Back
y=-(5/7)x
4.
FLASHCARD QUESTION
Front
Suppose y varies directly with x, and when y is 16, x is 8. Find y when x is 16.
Back
32
5.
FLASHCARD QUESTION
Front
Suppose y varies directly with x, and when y is 2, x is 3. Find x when y is 42.
Back
63
6.
FLASHCARD QUESTION
Front
Does the equation 2x = y represent a direct variation?
Back
True
7.
FLASHCARD QUESTION
Front
v varies directly with t; v = 16 when t = 2. Options: v = kt, v = k/t, v = 8t, v = 8/t
Back
v = 8t
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