12-2 Line & Bar Graphs

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. It is used to show 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

How do you determine the total from a bar graph?

Back

To determine the total from a bar graph, add the values represented by each bar.

Front

What does the scale on a graph represent?

Back

The scale on a graph indicates the intervals of measurement used on the axes, helping to interpret the data accurately.

Front

How can you find the percentage increase between two values?

Back

To find the percentage increase, subtract the original value from the new value, divide by the original value, and multiply by 100.

Front

What is the purpose of using graphs in data representation?

Back

Graphs are used to visually represent data, making it easier to identify trends, compare values, and understand relationships.

Front

What is the x-axis in a graph?

Back

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

Front

What is the y-axis in a graph?

Back

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

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.

Front

What does it mean if a line graph is increasing?

Back

If a line graph is increasing, it means that the values represented are getting larger over the time period shown.