math 7 unit 6 test review. 1. which equation represents a direct variation? a. xy = 4 b. y = 4/x c....
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![Page 1: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/1.jpg)
Math 7 Unit 6
Test Review
![Page 2: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/2.jpg)
1. Which equation represents a direct variation?
A. xy = 4
B. y = 4/x
C. y = 4x
D. y = 4 + x
![Page 3: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/3.jpg)
2. Which equation represents an inverse variation?
A. y = x + 4
B. y = 4x
C. y = 4 – x
D. y = 4/x
![Page 4: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/4.jpg)
3. Does the table of values represent a direct variation, inverse variation or neither?
x y
1 6
2 3
3 1
A.Direct
B.Inverse
C.Neither
![Page 5: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/5.jpg)
4. Does the table of values represent a direct variation, inverse variation or neither?
x y
2 3
1 6
6/5 5
A.DirectB.InverseC.Neither
![Page 6: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/6.jpg)
5. Do the following coordinates represent a direct variation, inverse variation or neither? (2,12); (3, 8); (-6, -4); (4, 6)
A. Direct
B. Inverse
C. Neither
![Page 7: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/7.jpg)
6. Y varies inversely as x. When x = 3, then y = 12. What is the value of y when x = 4?
A. 16
B. 36
C. 1
D. 9
![Page 8: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/8.jpg)
7. Which describes the graph of a direct proportion?
A. Straight line in quadrant I only
B. Straight line going through the origin
C. Curve (hyperbola) that never crosses either x or y
D. Curve (hyperbola) that crosses through the origin
![Page 9: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/9.jpg)
8. Which describes the graph of an inverse variation?
A. Straight line in quadrant I only
B. Straight line going through the origin
C. Curve (hyperbola) that never crosses either x or y
D. Curve (hyperbola) that crosses through the origin
![Page 10: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/10.jpg)
9. The school board has $2,000,000 to use for school supplies. If they give each school an equal amount, how do they decide how much money each school gets?
A. Take $2,000,000 and divide it by how many schools there are
B. Take the number of schools and divide that by $2,000,000
C. Take $2,000,000 and multiply by the number of schools there are
![Page 11: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/11.jpg)
10. What type of variation does the previous situation represent?
A. Direct
B. Inverse
C. Neither
![Page 12: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/12.jpg)
11. John makes $10 for each lawn he mows. How can you determine how much money he will make?
A. Multiply 10 by the number of lawns he mows
B. Divide the number of lawns he mows by 10
C. Add 10 to the number of lawns he mows
D. Divide 10 by the number of lawns he mows
![Page 13: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/13.jpg)
12. What type of variation does the previous situation represent?
A. Direct
B. Inverse
C. Neither
![Page 14: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/14.jpg)
13. If x = 4 and y = 12, and x varies directly with y, what is x when y = 18
A. 6
B. 3
C. 2
D. 54
![Page 15: Math 7 Unit 6 Test Review. 1. Which equation represents a direct variation? A. xy = 4 B. y = 4/x C. y = 4x D. y = 4 + x](https://reader035.vdocuments.us/reader035/viewer/2022070305/55144769550346494e8b4c72/html5/thumbnails/15.jpg)
14. y varies inversely with x. When x = 10, then y = 2. What is y when x = 4
A. 4/5
B. 5
C. 20
D. 8