Variation Functions Section 5.1. Direct Variation.

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Presentation transcript:

Variation Functions Section 5.1

Direct Variation

Direct Variation Examples

Joint Variation

Inverse Variation

Inverse Variation Examples

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?

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

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

Combined Variation

HOMEWORK  Page #17-37, 39-41, 45-49