Given Functions F and G, Perform the Indicated Operations $\mathrm { r }$

question 222

Multiple Choice

Given functions f and g, perform the indicated operations.
-The following graph shows the private, public and total national school enrollment for students for select years from 1970 through 2000 .
National School Enrollment

i) How is the graph for total school enrollment, T, determined from the graph of the private enrollment, $\mathrm { r }$ , and the public enrollment, u?
ii) During which 10 -year period did the total number of students enrolled increase the least?
iii) During which 10 -year period did the total number of students enrolled increase the most?

• A) i) \(\mathrm { T }\) is the sum of \(\mathrm { r }\) and \(\mathrm { u }\). ii) \(1970 - 1980\) iii) \(1990 - 2000\)
• B) i) \(T\) is the sum of \(r\) and \(u .\) ii) \(1990 - 2000\) iii) \(1970 - 1980\)
• C) i) \(T\) is the sum of \(r\) and \(u\). ii) \(1970 - 1980\) iii) \(1980 - 1990\)
• D) i) \(\mathrm { T }\) is the difference of \(\mathrm { r }\) and \(\mathrm { u }\). ii) \(1970 - 1980\) iii) \(1990 - 2000\)

---

Definitions:

Compounding Period

The frequency with which interest is added to the principal balance of an investment, which can be annually, semiannually, quarterly, etc.

Annual Percentage Rate

A measure of the cost of borrowing expressed as a yearly interest rate that includes fees and costs associated with the loan.

Effective Annual Rate

The real return on an investment, taking into account the effect of compounding interest as opposed to just the nominal rate.

Annuity Due

An annuity in which the payments are made at the beginning of each period; contrast with ordinary annuity, where payments are made at the end of the period.