Line 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 does the x-axis represent in a line graph?

Back

The x-axis is the horizontal line on a graph that typically represents the independent variable, such as time or categories.

Front

What does the y-axis represent in a line graph?

Back

The y-axis is the vertical line on a graph that typically represents the dependent variable, such as quantity or value.

Front

How do you determine the value of a point on a line graph?

Back

To determine the value of a point on a line graph, locate the point on the graph, then read the corresponding values from the x-axis and y-axis.

Front

What does it mean if a line on a graph is going up?

Back

If a line on a graph is going up, it indicates that the value of the dependent variable is increasing as the independent variable increases.

Front

What does it mean if a line on a graph is going down?

Back

If a line on a graph is going down, it indicates that the value of the dependent variable is decreasing as the independent variable increases.

Front

How can you find the difference between two points on a line graph?

Back

To find the difference between two points on a line graph, subtract the value of the lower point from the value of the higher point.

Front

What is the purpose of a title in a line graph?

Back

The title of a line graph explains what the graph is about, providing context for the data being presented.

Front

What does a flat line on a graph indicate?

Back

A flat line on a graph indicates that there is no change in the value of the dependent variable as the independent variable changes.

Front

How can you identify trends in a line graph?

Back

Trends in a line graph can be identified by observing the overall direction of the line (upward, downward, or flat) over a period of time.