served is the verb. A verb is a action, the action here is served
It makes graphs look better if you need a curved line, if someone wants to point something out they dont have to actual draw on the persons graph they can just use the electronic version, if you need to shade something in that you cant do while its straight on the screen, there are lots of things that a pen can be used for.
Answer:
A direct report is an employee who formally reports to you. This generally means that you are directly responsible for assigning them work and managing their performance. An indirect report are the employees who report to your direct reports and their subordinates.
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Answer:
cyclical unemployment.
Explanation:
Unemployment rate refers to the percentage of the total labor force in an economy, who are unemployed but seeking to be gainfully employed. The unemployment rate is divided into various types, these include;
I. Cyclical unemployment rate (CU).
II. Frictional unemployment rate (FU).
III. Structural unemployment rate (SU).
IV. Actual unemployment rate (AU).
V. Natural Rate of Unemployment (NU).
A cyclical unemployment can be defined as a type of unemployment which is typically related to changes in the business, economy or industry cycle such as recession, governmental policies etc.
Mathematically, cyclical unemployment rate can be calculated using the formula;

Hence, the increase in unemployment that occurs during recessions and depressions is called cyclical unemployment