The data which changes over a period of time can be displayed through a line graph.
In line graph:
● Points are plotted on the graph related to two variables
● Points are joined by the line segments.
How to Construct a Line Graph?
Steps of construction of line graph:
On a graph, draw two lines perpendicular to each other intersecting at O. The horizontal line is x-axis and vertical line is y-axis. Mark points at equal intervals along x-axis and write the names of the data items whose values are to be marked.
Along the y-axis, choose an appropriate scale considering the given values.
Now, make the points
Join each point with the successive point using a ruler. Thus, a line graph is obtained
Solve Examples on Line Graph:1. The following table gives the information of the sum scored by McKay in 10 matches. Represent this information using line graph.
2. Mobile phones sold by a shop in a certain week are as follows:
|No. of Mobile Phones Sold||20||16||12||24||4||10|
Represent the above data by a line graph.