Assessment Independent and Dependent Variables

Front

What is an independent variable?

Back

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

Front

How can you identify a function using the vertical line test?

Back

If a vertical line intersects the graph at more than one point, the graph does not represent a function.

Front

What does it mean if a set of ordered pairs represents a function?

Back

It means that each input (x-value) is associated with exactly one output (y-value).

Front

In the context of a walkathon, what is the relationship between distance walked and money raised?

Back

The amount of money raised is dependent on the distance walked; as distance increases, the money raised may also increase.

Front

What is an example of an independent variable in an experiment?

Back

The amount of sunlight a plant receives when testing its growth.

Front

What is an example of a dependent variable in an experiment?

Back

The height of a plant measured after a certain period of growth.

Front

If Sarah walks 5 miles and raises $50, what is the dependent variable?

Back

The amount of money raised ($50) is the dependent variable.

Front

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

Back

To understand how changes in one variable affect another variable.

Front

Can a dependent variable be a constant?

Back

No, a dependent variable must change in response to the independent variable.