Line Graphs

Front

What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. It is used to show trends 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 an experiment.

Front

How do you determine the value of a point on a line graph?

Back

To determine the value of a point, find the point on the graph, then look at the corresponding values on the x-axis and y-axis.

Front

What does it mean if two points on a line graph are at the same height?

Back

If two points are at the same height, it means that the dependent variable has the same value at those two different times or conditions.

Front

How can you identify the greatest increase on a line graph?

Back

The greatest increase can be identified by looking for the steepest slope between two points on the graph.

Front

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

Back

The title of a line graph provides a brief description of what the graph represents, helping viewers understand 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, representing the relationship between the independent and dependent variables.

Front

How can you find the average value from a line graph?

Back

To find the average value, you can add all the values of the dependent variable and divide by the number of data points.

Front

What does a flat line indicate on a line graph?

Back

A flat line indicates that there is no change in the dependent variable over the time period represented.