Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is a 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 is measured and affected in an experiment, depending on the independent variable.

Front

How do you identify the independent variable in an experiment?

Back

The independent variable is usually the one that is manipulated or changed by the experimenter.

Front

How do you identify the dependent variable in an experiment?

Back

The dependent variable is what you measure in the experiment and what is affected during the experiment.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable affects the dependent variable; changes in the independent variable lead to changes in the dependent variable.

Front

Can a function have more than one output for a single input?

Back

No, a function must have only one output for each input.

Front

What is the definition of a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input.

Front

In the equation y = 2x + 3, what is the independent variable?

Back

The independent variable is x.

Front

In the equation y = 2x + 3, what is the dependent variable?

Back

The dependent variable is y.

Front

If studying more hours leads to a higher grade, what is the independent variable?

Back

The independent variable is the number of hours spent studying.