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# Solutions for Chapter 3: Exponential and Logarithmic Functions

## Full solutions for Precalculus | 7th Edition

ISBN: 9780618643448

Solutions for Chapter 3: Exponential and Logarithmic Functions

Solutions for Chapter 3
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##### ISBN: 9780618643448

This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Precalculus, edition: 7. Chapter 3: Exponential and Logarithmic Functions includes 155 full step-by-step solutions. Precalculus was written by and is associated to the ISBN: 9780618643448. Since 155 problems in chapter 3: Exponential and Logarithmic Functions have been answered, more than 32535 students have viewed full step-by-step solutions from this chapter.

Key Calculus Terms and definitions covered in this textbook
• Average rate of change of ƒ over [a, b]

The number ƒ(b) - ƒ(a) b - a, provided a ? b.

• Base

See Exponential function, Logarithmic function, nth power of a.

• Basic logistic function

The function ƒ(x) = 1 / 1 + e-x

• Bias

A flaw in the design of a sampling process that systematically causes the sample to differ from the population with respect to the statistic being measured. Undercoverage bias results when the sample systematically excludes one or more segments of the population. Voluntary response bias results when a sample consists only of those who volunteer their responses. Response bias results when the sampling design intentionally or unintentionally influences the responses

• Conjugate axis of a hyperbola

The line segment of length 2b that is perpendicular to the focal axis and has the center of the hyperbola as its midpoint

• Constant of variation

See Power function.

• Cosecant

The function y = csc x

• Demand curve

p = g(x), where x represents demand and p represents price

• Descriptive statistics

The gathering and processing of numerical information

• Identity

An equation that is always true throughout its domain.

• Interquartile range

The difference between the third quartile and the first quartile.

• Irrational zeros

Zeros of a function that are irrational numbers.

• Multiplicative inverse of a complex number

The reciprocal of a + bi, or 1 a + bi = a a2 + b2- ba2 + b2 i

• Natural logarithmic function

The inverse of the exponential function y = ex, denoted by y = ln x.

• Normal distribution

A distribution of data shaped like the normal curve.

• Re-expression of data

A transformation of a data set.

• Right angle

A 90° angle.

• Sum of a finite geometric series

Sn = a111 - r n 2 1 - r

• Velocity

A vector that specifies the motion of an object in terms of its speed and direction.

• Zero factor property

If ab = 0 , then either a = 0 or b = 0.

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