Bar Graphs and Line 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 of each bar to determine the value it represents and compare the bars to see differences between categories.

Front

How do you read a line graph?

Back

To read a line graph, observe the points plotted on the graph and follow the lines to see how values change over time.

Front

What does the x-axis represent in a graph?

Back

The x-axis is the horizontal line on a graph that typically represents categories or time.

Front

What does the y-axis represent in a graph?

Back

The y-axis is the vertical line on a graph that usually represents the quantity or value.

Front

What is the purpose of a title in a graph?

Back

The title of a graph explains what the data represents, helping viewers understand the context.

Front

What is a key or legend in a graph?

Back

A key or legend explains the symbols, colors, or patterns used in the graph to represent different data sets.

Front

How can you compare data using a bar graph?

Back

You can compare data using a bar graph by looking at the heights of the bars; taller bars represent larger values.

Front

How can you identify trends using a line graph?

Back

You can identify trends in a line graph by observing the direction of the line; if it goes up, the value is increasing, and if it goes down, the value is decreasing.