Line Graphs and Bar 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 is a bar graph?

Back

A bar graph is a chart that presents categorical data with rectangular bars. The length of each bar is proportional to the value it represents.

Front

How do you read a line graph?

Back

To read a line graph, look at the x-axis (horizontal) for the time or category and the y-axis (vertical) for the value. Follow the line to see how the value changes.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the categories on the x-axis and the values on the y-axis. The height of each bar shows the value for that category.

Front

What does the x-axis represent in a graph?

Back

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

Front

What does the y-axis represent in a graph?

Back

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

Front

What is the purpose of a title in a graph?

Back

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

Front

What is a data point?

Back

A data point is a single value that represents a measurement or observation in a graph.

Front

How can you compare data using bar graphs?

Back

You can compare data using bar graphs by looking at the heights of the bars. Taller bars represent larger values, making it easy to see differences.

Front

What is the importance of scale in a graph?

Back

The scale in a graph determines the range of values represented. It is important for accurately interpreting the data.