Definitions [3]
Definition: Unitary Method
The unitary method is a process used to find the value of a single unit from the value of multiple units and then find the value of multiple units from the value of a single unit.

Definition: Direct Variation
Two quantities are said to have direct variation if, when one quantity increases, the other quantity also increases, and when one quantity decreases, the other quantity also decreases.

Definition: Inverse Variation
Two quantities are in inverse variation if, when one quantity increases, the other decreases, and when one decreases, the other increases.

