Question

choose the correct answer below.
a. bar graphs are often used to illustrate trends over time. some measure of time, such as months or years, frequently appear on the horizontal axis. amounts are generally listed on the vertical axis. points are drawn to represent the given information. the graph is formed by connecting points with line segments.
b. bar graphs show how a whole quantity is divided into parts. each part, or sector, is like a wedge of a pie and the area of each sector represents the percentage of that part.
c. bar graphs are convenient for comparing some measurable attribute of various items. the bars may be horizontal or vertical, and their heights or lengths are used to show the amounts of different items.

Explanation:

Bar graphs use bars (horizontal or vertical) with lengths or heights representing amounts of different items, which is useful for comparison. Option A describes a line - graph, and option B describes a pie - chart.

Answer:

C. Bar graphs are convenient for comparing some measurable attribute of various items. The bars may be horizontal or vertical, and their heights or lengths are used to show the amounts of different items.