Line Graphs and Bar Graphs

Front

What is a line graph?

Back

A line graph is a type of chart that shows information as a series of data points called 'markers' connected by straight line segments. It is used to display 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

What does the x-axis represent in a graph?

Back

The x-axis is the horizontal line in a graph that typically represents the independent variable or categories.

Front

What does the y-axis represent in a graph?

Back

The y-axis is the vertical line in a graph that typically represents the dependent variable or the values being measured.

Front

How do you read a line graph?

Back

To read a line graph, look at the x-axis to find the time or category, then follow the line up or down to see the corresponding value on the y-axis.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the categories on the x-axis and the height of the bars to determine the values represented.

Front

What is the purpose of a graph?

Back

The purpose of a graph is to visually represent data to make it easier to understand trends, comparisons, and relationships.

Front

What does it mean if a line graph is flat?

Back

If a line graph is flat, it means that there is no change in the value being measured over the time period shown.

Front

What does it mean if a bar graph has a taller bar?

Back

A taller bar in a bar graph indicates a higher value or frequency for that category compared to others.

Front

What is a data point?

Back

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