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 trends over time.

Front

What does a line graph typically show?

Back

A line graph typically shows trends over time, allowing us to see how a variable changes.

Front

What is the x-axis in a line graph?

Back

The x-axis is the horizontal line on a graph that usually represents the independent variable, such as time.

Front

What is the y-axis in a line graph?

Back

The y-axis is the vertical line on a graph that usually represents the dependent variable, such as quantity or value.

Front

How do you read a line graph?

Back

To read a line graph, look at the points plotted on the graph and observe how they connect to show trends or changes over time.

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 over time.

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 over time.

Front

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

Back

If a line on a graph is flat, it means that the value of the dependent variable is staying the same over time.

Front

What is the purpose of a line graph?

Back

The purpose of a line graph is to show trends over time and to help compare changes in data.

Front

What is a data point in a line graph?

Back

A data point is a specific value plotted on the graph that represents the relationship between the independent and dependent variables.