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

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

Back

In the equation y = mx + b, 'y' represents the dependent variable.

Front

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

Back

In the equation y = mx + b, 'x' represents the independent variable.

Front

What is the y-axis in a coordinate plane?

Back

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

Front

What is the x-axis in a coordinate plane?

Back

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

Front

If the number of hours worked increases, what happens to the money earned?

Back

The money earned (dependent variable) increases as the number of hours worked (independent variable) increases.

Front

In a graph, what does the slope represent?

Back

The slope represents the rate of change between the independent variable and the dependent variable.

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output (dependent variable) for each input (independent variable).

Front

How do you identify the independent variable in a word problem?

Back

The independent variable is usually the one that you can control or change, often described as 'what you change'.