4.3 Line Graphs

Front

What is a line graph?

Back

A line graph is a type of chart that shows information as a series of data points called 'markers' connected by straight line segments. It is used to display data that changes over time.

Front

What does the x-axis represent in a line graph?

Back

The x-axis (horizontal axis) typically represents the independent variable, such as time or categories.

Front

What does the y-axis represent in a line graph?

Back

The y-axis (vertical axis) usually represents the dependent variable, such as quantity or measurement.

Front

How do you read a line graph?

Back

To read a line graph, look at the x-axis to find the category or time, then move up or down to see the corresponding value on the y-axis.

Front

What does it mean if a line on a graph is increasing?

Back

If a line on a graph is increasing, it means that the value of the dependent variable is going up as the independent variable increases.

Front

What does it mean if a line on a graph is decreasing?

Back

If a line on a graph is decreasing, it means that the value of the dependent variable is going down as the independent variable increases.

Front

What does a flat line on a graph indicate?

Back

A flat line indicates that the value of the dependent variable is staying the same as the independent variable changes.

Front

How can you find the highest point on a line graph?

Back

The highest point on a line graph is where the line reaches its maximum value on the y-axis.

Front

What is the purpose of a line graph?

Back

The purpose of a line graph is to visually represent data trends over time, making it easier to see patterns and changes.

Front

What type of data is best represented by a line graph?

Back

Line graphs are best for continuous data that changes over time, such as temperature, sales, or height.