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 typically represents the independent variable, which is the variable that is changed or controlled in a scientific experiment.

Front

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

Back

The y-axis represents the dependent variable, which is the variable that is measured and affected in the experiment.

Front

How do you determine the slope of a line in a graph?

Back

The slope of a line is determined by the rise over run, which is the change in the y-values divided by the change in the x-values.

Front

What does an increasing line on a graph indicate?

Back

An increasing line indicates that as the independent variable increases, the dependent variable also increases.

Front

What does a decreasing line on a graph indicate?

Back

A decreasing line indicates that as the independent variable increases, the dependent variable decreases.

Front

What does a horizontal line on a graph indicate?

Back

A horizontal line indicates that the dependent variable remains constant as the independent variable changes.

Front

How can you find the total number of items represented in a line graph?

Back

You can find the total by adding the values of the dependent variable at specific points on the graph.

Front

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

Back

The title provides a clear 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.