3. DirectInverseJointVariations Radical Review 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500

4. Direct Variations 100 Points n Find Y (3,4) (9,y)

5. Direct Variations 200 Points n Give an example of direct variation that deals with a health issue.

6. Direct Variations 300 Points n Write an equation of a line for a direct variation where x=2 and y=5.

7. Direct Variations 400 Points n Does the following data represent a direct variation? If so, what is the constant of variation, if not what type of variation is it? -69 1-1.5 8-12

8. Direct Variations 500 Points n If one dog year equals seven human years, How many dog years is twelve human years?

9. Inverse Variations 100 Points n Find the constant of variation if a=25 when b=0.04.

10. Inverse Variations 200 Points n Find t (50,13) (t,5)

11. Inverse Variations 300 Points n Sketch the graph that an inverse variation follows.

12. Inverse Variations 400 Points n If four people can paint a house working three hours a day, how long does it take a crew of five people?

13. Inverse Variations 500 Points n Two rectangular building lots are each one-quarter acre in size. One plot measures 99 ft by 110 ft. Find the length of the other plot if its width is 90 ft.

14. Joint Variations 100 Points n Write an equation using k for the constant of variation. If f varies jointly as g and h.

15. Joint Variations 200 Points n If y=45 varies jointly as x=9 and z=6, find y when x=10 and z=6.

16. Joint Variations 300 Points n Name the constant of variation if y=30 when x=3 and z=5.

17. Joint Variations 500 Points n If y varies jointly as x and z and y=60 when x=30 and z=4 find k.

18. Variations 100 Points n Name the constant and type of variation when

19. Variations 200 Points n Draw a graph of a direct variation.

20. Variations 300 Points n Give a table of values that represents an inverse variation.

21. Variations 400 Points n d=2r is what type of variation

22. Variations 500 Points n Solve each direct, inverse and joint variation formulas for k.

23. Radical Review 100 Points n Give the pythagorean theorem solved for the hypotenuse.

24. Radical Review 200 Points n Simplify 18 + 3

25. Radical Review 300 Points n Simplify 192x 3 y 5

26. Radical Review 400 Points n Simplify 2 n a 3

27. Radical Review 500 Points n Simplify x= x+6

28. Final Jeopardy n What type of variation would be represented when determining the interest paid on a loan over time?