M7HN/Prealgebra- Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is a variable that represents the input or cause in an experiment or equation. It is the variable that is manipulated or changed.

Front

What is a dependent variable?

Back

A dependent variable is a variable that represents the output or effect in an experiment or equation. It depends on the independent variable.

Front

In the equation t = 3s + 5, which variable is independent?

Back

s (the number of students) is the independent variable.

Front

In the equation C = 5 + 1.5m, which variable is dependent?

Back

C (the money it costs) is the dependent variable.

Front

What does the x-axis represent in a graph?

Back

The x-axis represents the independent variable.

Front

What does the y-axis represent in a graph?

Back

The y-axis represents the dependent variable.

Front

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

Back

The money earned increases, showing that money earned is dependent on the number of hours babysat.

Front

In the equation y = 2x + 3, identify the independent variable.

Back

x is the independent variable.

Front

In the equation y = 4 + 5z, identify the dependent variable.

Back

y is the dependent 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.