A bar or column chart.
A bar graph is a graph that has vertical or horizontal bars to represent numbers. A bar graph is usually used to compare two different things with each other.
use a bar graph
Line graphs are better for representing things that vary continuously, like temperature against time. Bar graphs are better for representing things that are counts not mapped against a continuous variable such as time, so in your case I would recommend a bar graph.
A graph.
graph
A line graph to compare temperatures over time. A bar graph to compare temperatures at different locations (cities), for example.
a bar graph
A graph that uses bars is simply called a bar graph.
The best graph for the purpose of comparing raw numbers between different qualitative categories would be a bar graph or some variation thereof.
A bar graph would be best to compare the nutrients in two different types of bread.
Any graph can be used for such a purpose.
chart/bar graph