Question

Which of the following is true about line graphs?

A. The dependent variable is on the horizontal axis
B. Line graphs are always straight lines.
C. Every data point should be shown on a line graph.
D. There is a maximum number of data points that can be used in a line graph.

Answer 1

The correct option is D.
A line graph is visual graph which can be used to observe the relationships between two or more variables. The independent variable is always put on the horizontal axis and the dependent variable on the vertical axis. The plotted data are normally joined by dots.