Line Graphs- Lesson 5.6d

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 data that changes over time.

The x-axis (horizontal axis) typically represents the independent variable, which is the variable that is changed or controlled in an experiment.

The y-axis (vertical axis) usually represents the dependent variable, which is the variable that is measured or affected in an experiment.

To read a line graph, look at the x-axis to find the value of the independent variable, then move up or down to find the corresponding value on the y-axis.

An upward slope indicates that as the independent variable increases, the dependent variable also increases.

A downward slope indicates that as the independent variable increases, the dependent variable decreases.

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

A data point is a specific value plotted on the graph, representing the relationship between the independent and dependent variables.

To find the maximum value, look for the highest point on the line graph, which represents the greatest value of the dependent variable.

If two points are at the same height, it means that the dependent variable has the same value for those two different values of the independent variable.