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# Solutions for Chapter 2: FUNCTIONS

## Full solutions for Precalculus: Mathematics for Calculus | 6th Edition

ISBN: 9780840068071

Solutions for Chapter 2: FUNCTIONS

Solutions for Chapter 2
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##### ISBN: 9780840068071

Summary of Chapter 2: FUNCTIONS

Chapter 2: FUNCTIONS includes 92 full step-by-step solutions. Since 92 problems in chapter 2: FUNCTIONS have been answered, more than 42692 students have viewed full step-by-step solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Precalculus: Mathematics for Calculus, edition: 6. Precalculus: Mathematics for Calculus was written by and is associated to the ISBN: 9780840068071.

Key Calculus Terms and definitions covered in this textbook
• Absolute maximum

A value ƒ(c) is an absolute maximum value of ƒ if ƒ(c) ? ƒ(x) for all x in the domain of ƒ.

• Annual percentage rate (APR)

The annual interest rate

• Annual percentage yield (APY)

The rate that would give the same return if interest were computed just once a year

• Complex plane

A coordinate plane used to represent the complex numbers. The x-axis of the complex plane is called the real axis and the y-axis is the imaginary axis

• Difference of two vectors

<u1, u2> - <v1, v2> = <u1 - v1, u2 - v2> or <u1, u2, u3> - <v1, v2, v3> = <u1 - v1, u2 - v2, u3 - v3>

• Focal axis

The line through the focus and perpendicular to the directrix of a conic.

• Identity function

The function ƒ(x) = x.

• Magnitude of a real number

See Absolute value of a real number

• Midpoint (on a number line)

For the line segment with endpoints a and b, a + b2

• Objective function

See Linear programming problem.

• Polynomial interpolation

The process of fitting a polynomial of degree n to (n + 1) points.

• Present value of an annuity T

he net amount of your money put into an annuity.

• Projectile motion

The movement of an object that is subject only to the force of gravity

• Quotient of complex numbers

a + bi c + di = ac + bd c2 + d2 + bc - ad c2 + d2 i

• Replication

The principle of experimental design that minimizes the effects of chance variation by repeating the experiment multiple times.

• Secant

The function y = sec x.

• Solution set of an inequality

The set of all solutions of an inequality

• Standard form of a polar equation of a conic

r = ke 1 e cos ? or r = ke 1 e sin ? ,

• Summation notation

The series a nk=1ak, where n is a natural number ( or ?) is in summation notation and is read "the sum of ak from k = 1 to n(or infinity).” k is the index of summation, and ak is the kth term of the series

• Tree diagram

A visualization of the Multiplication Principle of Probability.