5.4 - Independent and Dependent Variables

Front

What is an independent variable (IV)?

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 (DV)?

Back

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

Front

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

Back

The x-axis typically represents the independent variable.

Front

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

Back

The y-axis typically represents the dependent variable.

Front

If the number of hours studied increases, what is likely to happen to test scores? Identify the IV and DV.

Back

IV: Number of hours studied; DV: Test scores.

Front

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

Back

It means that the variable's value depends on the changes made to another variable (the independent variable).

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.

Front

In the equation y = mx + b, what does y represent?

Back

y represents the dependent variable.

Front

In the equation y = mx + b, what does x represent?

Back

x represents the independent variable.

Front

How can you identify the dependent variable in a word problem?

Back

Look for the outcome or result that changes in response to the independent variable.