Reading 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 does the height of a bar in a bar graph represent?

Back

The height of a bar represents the quantity or value of the category it represents.

Front

How can you determine which category has the highest value in a bar graph?

Back

You can determine the highest value by looking for the tallest bar in the graph.

Front

What does it mean if a bar graph has a bar that is shorter than others?

Back

It means that the category represented by that bar has a lower quantity or value compared to the others.

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 a line.

Front

How do you read a line graph?

Back

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

Front

What does an increase in temperature look like on a line graph?

Back

An increase in temperature is shown by a line that slopes upward from left to right.

Front

What does a decrease in temperature look like on a line graph?

Back

A decrease in temperature is shown by a line that slopes downward from left to right.

Front

What is the difference between a bar graph and a line graph?

Back

A bar graph compares different categories, while a line graph shows changes over time.

Front

What does it mean if two bars in a bar graph are the same height?

Back

It means that the two categories represented by those bars have the same quantity or value.