The purpose of a chart or graph is
a.) a reader visualize something.
b.) describe what is featured in an image.
c.) divide the parts of a text into logical units.
d.) present and summarize information.

D.) present and summarize information.

Explanation:

A chart or graph is a geometric representation of a data set used to make it easier to understand the information presented in that set. Graphs help identify patterns, check results, and compare measurements quickly. In addition, they can be used in many ways and in different areas of knowledge.

Thus, we can state that the purpose of chart or graph is to present and summarize information.

president reagan was a good presidant and should be presidant if he was still alive

explanation:

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.