Understanding Bar Graphs

What is the purpose of the x-axis in a bar graph?

• To show the numerical values

• To indicate the scale of the graph

• To display the categories being compared

• To represent the total data collected

In a single scale bar graph, how do the numbers on the y-axis increase?

• By ones

• By tens

• By fives

• By twos

If Hank found three shells, where should his bar end on the graph?

• At the number three

• At the number five

• At the number two

• At the number four