Final answer:
A complete line graph requires axes, data points, labels, and a title, with axes intervals that are equally spaced to ensure accurate measurement and clear representation of trends. An example can be using tick marks representing time intervals on the x-axis and distances on the y-axis.
Step-by-step explanation:
The parts required in order to have a complete line graph are axes, data points, labels, and a title. Specifically, the correct answer is (B) Axes, data points, and labels. Each axis on the graph must be labeled with the variable name and the units of measurement, such as Time (min) for the x-axis. Moreover, the intervals on the axes must be equally spaced and counted to ensure accurate measurement and representation. Equally spaced intervals allow for the accurate comparison of data points and maintain the proportionality of the graph.
For example, if we are graphing the time taken every 10 minutes, we could number the x-axis from 0 to 70 minutes with a tick mark every 10 minutes. Likewise, the y-axis could be scaled from 0 km to 160 km, using tick marks every 10 km to represent distance. This systematic approach helps in easily identifying trends and making the graph easy to understand.
Line graphs are used to show the relationship between two variables, a dependent and an independent variable, which are measured on the y-axis and x-axis respectively. An example of a line graph could be survey results on the frequency of chores reminders needed by teenagers.