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# Solutions for Chapter 1: Functions and Their Graphs

## Full solutions for Precalculus | 7th Edition

ISBN: 9780618643448

Solutions for Chapter 1: Functions and Their Graphs

Solutions for Chapter 1
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##### ISBN: 9780618643448

This textbook survival guide was created for the textbook: Precalculus, edition: 7. This expansive textbook survival guide covers the following chapters and their solutions. Chapter 1: Functions and Their Graphs includes 165 full step-by-step solutions. Since 165 problems in chapter 1: Functions and Their Graphs have been answered, more than 39910 students have viewed full step-by-step solutions from this chapter. Precalculus was written by and is associated to the ISBN: 9780618643448.

Key Calculus Terms and definitions covered in this textbook
• Back-to-back stemplot

A stemplot with leaves on either side used to compare two distributions.

• Compound fraction

A fractional expression in which the numerator or denominator may contain fractions

• Constant

A letter or symbol that stands for a specific number,

• Coterminal angles

Two angles having the same initial side and the same terminal side

• Empty set

A set with no elements

• Horizontal asymptote

The line is a horizontal asymptote of the graph of a function ƒ if lim x:- q ƒ(x) = or lim x: q ƒ(x) = b

• Horizontal Line Test

A test for determining whether the inverse of a relation is a function.

• Hyperbola

A set of points in a plane, the absolute value of the difference of whose distances from two fixed points (the foci) is a constant.

• Integrable over [a, b] Lba

ƒ1x2 dx exists.

• Linear equation in x

An equation that can be written in the form ax + b = 0, where a and b are real numbers and a Z 0

• Lower bound of f

Any number b for which b < ƒ(x) for all x in the domain of ƒ

• Multiplication principle of probability

If A and B are independent events, then P(A and B) = P(A) # P(B). If Adepends on B, then P(A and B) = P(A|B) # P(B)

• nth root of a complex number z

A complex number v such that vn = z

• Pole

See Polar coordinate system.

• Power-reducing identity

A trigonometric identity that reduces the power to which the trigonometric functions are raised.

The graph in three dimensions of a seconddegree equation in three variables.

• Statistic

A number that measures a quantitative variable for a sample from a population.

• Trigonometric form of a complex number

r(cos ? + i sin ?)

• Xmax

The x-value of the right side of the viewing window,.

• Zoom out

A procedure of a graphing utility used to view more of the coordinate plane (used, for example, to find theend behavior of a function).

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