Independent and Dependent Variables-Math

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, responding to changes in the independent variable.

Front

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

Back

The independent variable is x.

Front

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

Back

The dependent variable is y.

Front

If you increase the independent variable, what happens to the dependent variable?

Back

It may increase, decrease, or remain the same, depending on the relationship between the two variables.

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

Write an expression for the total cost if a shirt costs $15 and you buy x shirts.

Back

15x.

Front

If the number of hours worked is the independent variable, what could be a dependent variable in a wage problem?

Back

The total earnings.

Front

What is a controlled variable?

Back

A controlled variable is a variable that is kept constant to ensure that the experiment tests only the effect of the independent variable.

Front

In a graph, which axis typically represents the independent variable?

Back

The x-axis.