Independent Variables

An independent variable is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, in the equation y = 3x + 5, x is the independent variable because its value is not dependent on any other variable.

Characteristics of Independent Variables:

1. Not influenced by other variables: The value of the independent variable does not depend on the value of any other variable in the equation or experiment.
2. Manipulated or controlled: In an experiment, the independent variable is the variable that is changed or controlled by the experimenter.
3. Plotted on the x-axis: In a graph, the independent variable is typically plotted on the x-axis.

Examples of Independent Variables:

Some common examples of independent variables include:

• Time
• Temperature
• Height
• Amount of sunlight
• Amount of fertilizer

Study Guide:

1. Identify the variables in the equation or experiment.
2. Determine which variable is not influenced by the other variables.
3. Check if the variable is manipulated or controlled in the experiment.
4. Verify if the variable is typically plotted on the x-axis in a graph.
5. Practice identifying independent variables in different scenarios and equations.