Direct Variation Algebra
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose y varies directly as x. If y = 150 when x = 3, find y when x = 5.
0.1
90
153
250
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
On a scale, yards vary directly as feet. If 3 feet represent 30 yards, how many yards represent 5 feet.
0.5 yards
18 yards
32 yards
50 yards
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose y varies directly as x. If y = -4 when x = 32, find x when y = -0.375.
0.05
3
27.6
341.3
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The number of books sold varies directly as the cost of the books. If 8 books cost $10.40, how many books can be bought for $32.50?
25 books
30 books
32 books
42 books
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose y varies directly as x. If x = 15 when y = 12, find x when y = 21.
8.57
16.8
24
26.25
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The number of days worked varies directly as the amount earned. If a woman earns $805 for 7 days, how many days does she have to work to earn $1840?
16 days
1042 days
20171 days
211600 days
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose y varies directly as x. If y = -7 when x = -14, find x when y = 10.
-5
3
9.8
20
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