Ascale on a drawing is 0.5 mm : 4 cm. the height of the drawing is 4.5 millimeters. what is the actual height of the object?

A. bar graph

Step-by-step explanation:

A bar graph is a data chart that formed by bars to show comparisons between categories of data. The bars can be either horizontal or vertical .

One axis shows dependent variable and one axis shows independent variable.

Here, time is independent variable and their heights are dependent variables.

The comparison between the heights of seedlings is the growth of seedling which can be shown by bar graph. After that he can calculat the total growth of each one in centimeters.

Thus, the best method to use for visual representation is bar graph.