Final answer:
A line graph is a type of graph that shows the relationship between two variables: one measured on the horizontal axis and the other measured on the vertical axis. It is commonly used to display how data points have changed over time. Line graphs have characteristics such as displaying change over time, using continuous data, and connecting data points with straight lines. They consist of parts such as the x-axis, y-axis, scale, and title.
Step-by-step explanation:
Line Graphs
A line graph is a type of graph that shows the relationship between two variables: one measured on the horizontal axis and the other measured on the vertical axis. It is commonly used to display how a data point or points have changed over time and to show trends over a given period.
Characteristics of a Line Graph:
- Two Variables: A line graph shows the relationship between two variables, with one variable plotted on the horizontal axis and the other variable plotted on the vertical axis.
- Change Over Time: Line graphs depict how a data point or points have changed over time, allowing us to observe trends and patterns.
- Continuous Data: Line graphs are used for continuous data, where the variables can take on any value within a range.
- Connected Data Points: In a line graph, the data points are connected by straight lines, indicating a continuous relationship between the variables.
Parts of a Line Graph:
A line graph consists of the following parts:
- X-Axis: The horizontal line on the graph that represents the values of one of the variables.
- Y-Axis: The vertical line on the graph that represents the values of the other variable.
- Scale: The markings on the axes that indicate the units and intervals for each variable.
- Title: A descriptive title that summarizes the purpose or theme of the line graph.