1. Variation Functions Section 5.1

2. Direct Variation

3. Direct Variation Examples

5. Joint Variation

6. Inverse Variation

7. Inverse Variation Examples

8. 2) The time, t, needed to complete a certain race varies inversely as the runner’s average speed, s. If a runner with an average speed of 8.82 mi/h completes the race in 2.97 h, what is the average speed of a runner who completes the race in 3.5 h?

9. Data Representation  Direct and inverse variations equations can be solve for k.  Use these equations to see if given data is representing either type of variation

10. EX: Determine whether each data represents a direct variation, an inverse variation, or neither.  1)  2)  3) x6.513104 y840.5 x5812 y304872 x368 y51421

11. Combined Variation

12. HOMEWORK  Page 318-320 #17-37, 39-41, 45-49