what are the formulas that illustrates direct blinear variation ?? please help me !! i can't find any formula !! .. humpf .. :(

I am wondering if it is formulas you need or understanding.

First: Bilinear variation, or linear variation. There is a BIG difference.

Second: formulas indicate some question you have. What is it exactly you are trying to do?

In mathematics, direct bivariate variation, also called direct bilinear variation, is a relationship between two variables where one variable is directly proportional to the other variable, but also has a linear relationship with a constant term.

If you are looking for a formula that demonstrates direct bivariate variation, you can represent it using the equation:

y = mx + b

In this formula:
- "y" represents the dependent variable
- "x" represents the independent variable
- "m" represents the slope or the constant of variation
- "b" represents the y-intercept or the constant term

To find the specific formula for direct bivariate variation, you need to have data points or specific values for "m" and "b". These values can be found by analyzing a set of data that exhibits a direct bivariate variation pattern.