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WorksheetsQuarter 2 Week 1 Module 1(GRADE 9)
Total questions: 15
Worksheet time: 15mins
1. The cost C varies inversely as the size s of banana cake is written as.
A. C = ks
B. k= Cs
C. C =k/s
D. C =s/k
2. Which is an example of direct variation?
A. xy = 15
B. y = 12x
C. y = x/2
D. y = 2
3. What happens to y when x is doubled?
A. y is halved
B. y is tripled
C. y is doubled
D. none of the above
4. Which of the following described a direct variation?
5. Find the constant of variation where y varies inversely as x and y = 12 when x = 3.
A. 36
B. 26
C. 15
D. 4
6. If y varies inversely as x and y = -4 when x = -2, find x when y = 2.
A. 8
B. 4
C. -4
D. -8
7. If y varies directly as x and y = 15 when x = 5, find y when x = 10.Find the constant of variaton.
A. 3
B. 15/5
C. 15
D. 30
8. Which of the following graphs shows inverse variation?
9. If y varies directly as x and y = 36 when x = 4, find x when y = 45.
A. 15
B. 10
C. 9
D. 5
10. If y varies inversely as x and y = 8 when x = 10, find the constant of variation.
A. 80
B. 70
C. 10
D. 8
11. How many years would Belle have saved Php 300,000, if every four months she deposits in her bank account an amount of Php 4,000?
A. 26
B. 25
C. 15
D. 20
12. The number of screws (s) produced by a certain machine varies direcly as the amount of time (t) the machine is used. If the machine produces 15,000 screws in 5 hours, how many screws can it produce in 20 hours?
A. 60
B. 600
C. 6, 0000
D. 60,000
13. If 5 men can finish painting the house in 24 hours, how long can 10 men finish the same job?
A. 12
B. 16
C. 17
D. 20
14. The number of days needed to do a job varies inversely as the number of people working on it. It takes 10 days for 4 people to repair a building as quarantine facilities. How may people are needed to complete the job in 5 days?
A. 6
B. 7
C. 8
D. 10
15. How many liters of gasoline will Ben use on a trip of 800 kilometers? If he uses 15 liters of gasoline to travel 150 kilometers.
A. 10
B. 80
C. 90
D. 100
