1. UNIT 2, LESSON 8 VARIATION

2. THREE TYPES OF VARIATION

3. CONSTANT OF VARIATION Represented by the letter “k”.

4. DIRECT VARIATION y=kx

5. DIRECT VARIATION Find an equation of variation where y varies directly as the square of x, and y=12 when x=2.

6. DIRECT VARIATION Find an equation of variation where y varies directly as the square of x, and y=12 when x=2.

7. DIRECT VARIATION Find an equation of variation where y varies directly as the square of x, and y=12 when x=2.

8. DIRECT VARIATION Find an equation of variation where y varies directly as the square of x, and y=12 when x=2.

9. DIRECT VARIATION Find an equation of variation where y varies directly as the square of x, and y=12 when x=2.

10. INVERSE VARIATION y=k / x

11. INVERSE VARIATION Find an equation of variation where y varies inversely as the square of x, and y=3 when x=5.

12. INVERSE VARIATION Find an equation of variation where y varies inversely as the square of x, and y=3 when x=5.

13. INVERSE VARIATION Find an equation of variation where y varies inversely as the square of x, and y=3 when x=5.

14. INVERSE VARIATION Find an equation of variation where y varies inversely as the square of x, and y=3 when x=5.

15. INVERSE VARIATION Find an equation of variation where y varies inversely as the square of x, and y=3 when x=5.

16. COMBINED VARIATION y=kxz

17. COMBINED VARIATION Find an equation of variation where y varies jointly as x and z, and y=42 when x=2 and z=3.

18. COMBINED VARIATION Find an equation of variation where y varies jointly as x and z, and y=42 when x=2 and z=3.

19. COMBINED VARIATION Find an equation of variation where y varies jointly as x and z, and y=42 when x=2 and z=3.

20. COMBINED VARIATION Find an equation of variation where y varies jointly as x and z, and y=42 when x=2 and z=3.

21. COMBINED VARIATION Find an equation of variation where y varies jointly as x and z, and y=42 when x=2 and z=3.

22. VARIATION Find an equation of variation where y varies jointly as x and z and inversely as the square of w, and y=105 when x=3, z=20 and w=2.

23. VARIATION Find an equation of variation where y varies jointly as x and z and inversely as the square of w, and y=105 when x=3, z=20 and w=2.

24. VARIATION Find an equation of variation where y varies jointly as x and z and inversely as the square of w, and y=105 when x=3, z=20 and w=2.

25. VARIATION Find an equation of variation where y varies jointly as x and z and inversely as the square of w, and y=105 when x=3, z=20 and w=2.

26. VARIATION Find an equation of variation where y varies jointly as x and z and inversely as the square of w, and y=105 when x=3, z=20 and w=2.