Free direct and inverse variation math topic guide, including step-by-step examples, free practice questions, teaching tips and more!

Sal explains what it means for quantities to vary directly or inversely, and gives many examples of both types of variation.

Apr 2, 2025 · When two quantities are related by a proportion, we say they are proportional to each other. Another way to express this relation is to talk about the variation of the two …

Inverse or Indirect Variation, where when one of the variables increases, the other one decreases (their product is constant). For example, the temperature in my house varies indirectly (same …

If the value of variable increases with an increase in the value of a related variable, their relationship is termed as a direct variation. If the value of a variable decreases with an …

Jan 19, 2025 · In this article, we have learnt about the meaning of direct variation, inverse variation, the formula for direct variation, the meaning of constant proportionality, and the …

Direct variation means when one quantity changes, the other quantity also changes in direct proportion. Inverse variation is exactly the opposite of this. In this article, you will learn the …

Jul 17, 2025 · Learn about direct variation for your IB Maths AI course. Find information on key ideas, worked examples and common mistakes.

We say that earnings vary directly with the sales price of the car. The formula y = k x is used for direct variation. The value k is a nonzero constant greater than zero and is called the constant …

Direct and inverse variation represent key mathematical relationships between variables. Understanding these concepts helps clarify how changes in one variable affect another in both …