Line Graphs and Bar Graphs

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using bars of different heights or lengths to show the quantity of each category.

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.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the height or length of each bar to determine the value it represents for each category.

Front

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

Back

The x-axis typically represents the independent variable, often time or categories.

Front

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

Back

The y-axis represents the dependent variable, which is the quantity being measured.

Front

How can you find the total from a bar graph?

Back

To find the total, add the values represented by each bar.

Front

What is the purpose of a line graph?

Back

A line graph is used to show trends over time by connecting data points with lines.

Front

How do you determine the difference between two values on a line graph?

Back

To determine the difference, find the values at the two points and subtract the smaller value from the larger one.

Front

What is a key in a graph?

Back

A key explains what the symbols, colors, or patterns in the graph represent.

Front

How do you compare two sets of data using a bar graph?

Back

You can compare two sets of data by looking at the heights of the bars for each category side by side.