Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is a variable that stands alone and is not affected by other variables. It is the variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is a variable that depends on other factors. It is the variable that is measured in an experiment and is affected by changes in the independent variable.

Front

In the equation y = mx + b, which variable is independent?

Back

x is the independent variable.

Front

In the equation y = mx + b, which variable is dependent?

Back

y is the dependent variable.

Front

What does it mean when we say a variable is 'controlled'?

Back

A controlled variable is one that is kept constant throughout an experiment to ensure that the results are due to the independent variable.

Front

What is the purpose of identifying independent and dependent variables in an experiment?

Back

Identifying these variables helps to clarify the relationship being tested and allows for a better understanding of how changes in one variable affect another.

Front

If Sophie earned $5 for every A she got on her report card, what is the independent variable?

Back

The independent variable is the number of A's on the report card.

Front

If Sophie earned $5 for every A she got on her report card, what is the dependent variable?

Back

The dependent variable is the money earned.

Front

What is the x-axis in a coordinate plane?

Back

The x-axis is the horizontal number line in the coordinate plane.

Front

What is the y-axis in a coordinate plane?

Back

The y-axis is the vertical number line in the coordinate plane.