This week I learned how to illustrate relations between two variables and represent this relation in some form. I learned to illustrate the relationship between these two variables doing the following steps.

Ex Relation.

The grade you make on a test depends on the number of questions you answer correctly.

In this example the independent variable is the number of questions you answered correctly. The **independent variable** is also known as the** input. **This variable is known as the independent variable because the number of the independent variable is not depending on anything. The **dependant variable** in this example is the grade. The dependant variable (also known as the **output**)** **is called the dependant variable because its number depends on what number independent variables is.