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, which is the variable that is changed or controlled in an experiment.

Front

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

Back

The y-axis (vertical axis) usually represents the dependent variable, which is the variable that is measured in the experiment.

Front

How do you read a line graph?

Back

To read a line graph, look at the points plotted on the graph and follow the lines to see how the values change over time or between categories.

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 on a graph indicates that there is no change in the value of the dependent variable as the independent variable changes.

Front

How can you find the greatest value on a line graph?

Back

To find the greatest value on a line graph, look for the highest point on the line or the highest y-coordinate among the plotted points.

Front

What is the purpose of a title in a line graph?

Back

The title of a line graph explains what the graph is about, providing context for the data being presented.

Front

What is a data point in a line graph?

Back

A data point is a specific value plotted on the graph, represented by a marker at the intersection of the x and y coordinates.