1. Objective - To solve problems involving direct and inverse variation. Direct VariationInverse Variation Let x = price Let y = profit/unit Profit Price Let x = price Let y = sales Sales Price

2. Determine whether the equations are examples of direct variation, inverse variation, or neither. 1) 2) 3) 4) 5) 6) Direct Variation Inverse Variation Direct Variation Inverse Variation Neither

3. If y varies directly with x, use the given values to write an equation that describes y in terms of x. 1) x = 5 y = 20 2) x = 48 y = 18

4. If y varies inversely with x, use the given values to write an equation that describes y in terms of x. 1) x = 12 y = 4 2) x = 3 y = 15