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# Solutions for Chapter 1.2: Basics of Functions and Their Graphs

## Full solutions for Precalculus | 4th Edition

ISBN: 9780321559845

Solutions for Chapter 1.2: Basics of Functions and Their Graphs

Solutions for Chapter 1.2
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##### ISBN: 9780321559845

Chapter 1.2: Basics of Functions and Their Graphs includes 132 full step-by-step solutions. Precalculus was written by and is associated to the ISBN: 9780321559845. Since 132 problems in chapter 1.2: Basics of Functions and Their Graphs have been answered, more than 76002 students have viewed full step-by-step solutions from this chapter. This textbook survival guide was created for the textbook: Precalculus, edition: 4. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Amplitude

See Sinusoid.

• Blocking

A feature of some experimental designs that controls for potential differences between subject groups by applying treatments randomly within homogeneous blocks of subjects

• Coordinate(s) of a point

The number associated with a point on a number line, or the ordered pair associated with a point in the Cartesian coordinate plane, or the ordered triple associated with a point in the Cartesian three-dimensional space

• Distance (in a coordinate plane)

The distance d(P, Q) between P(x, y) and Q(x, y) d(P, Q) = 2(x 1 - x 2)2 + (y1 - y2)2

• Equally likely outcomes

Outcomes of an experiment that have the same probability of occurring.

• Extraneous solution

Any solution of the resulting equation that is not a solution of the original equation.

• Heron’s formula

The area of ¢ABC with semiperimeter s is given by 2s1s - a21s - b21s - c2.

• Independent events

Events A and B such that P(A and B) = P(A)P(B)

• Inferential statistics

Using the science of statistics to make inferences about the parameters in a population from a sample.

• Linear regression line

The line for which the sum of the squares of the residuals is the smallest possible

• Multiplication principle of counting

A principle used to find the number of ways an event can occur.

• Partial fraction decomposition

See Partial fractions.

• Pascal’s triangle

A number pattern in which row n (beginning with n = 02) consists of the coefficients of the expanded form of (a+b)n.

• Probability simulation

A numerical simulation of a probability experiment in which assigned numbers appear with the same probabilities as the outcomes of the experiment.

• Reflection through the origin

x, y and (-x,-y) are reflections of each other through the origin.

• Series

A finite or infinite sum of terms.

• Standard deviation

A measure of how a data set is spread

• Sum identity

An identity involving a trigonometric function of u + v

• Unit vector

Vector of length 1.

• z-axis

Usually the third dimension in Cartesian space.

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