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Solutions for Chapter 7.4: Precalculus 5th Edition

Full solutions for Precalculus | 5th Edition

ISBN: 9780321837349

Solutions for Chapter 7.4

Solutions for Chapter 7.4
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ISBN: 9780321837349

Precalculus was written by Sieva Kozinsky and is associated to the ISBN: 9780321837349. This expansive textbook survival guide covers the following chapters and their solutions. Since 14 problems in chapter 7.4 have been answered, more than 4804 students have viewed full step-by-step solutions from this chapter. Chapter 7.4 includes 14 full step-by-step solutions. This textbook survival guide was created for the textbook: Precalculus, edition: 5.

Key Calculus Terms and definitions covered in this textbook
• Additive inverse of a complex number

The opposite of a + bi, or -a - bi

• Angular speed

Speed of rotation, typically measured in radians or revolutions per unit time

• Degree of a polynomial (function)

The largest exponent on the variable in any of the terms of the polynomial (function)

• equation of a quadratic function

ƒ(x) = ax 2 + bx + c(a ? 0)

• Graph of a function ƒ

The set of all points in the coordinate plane corresponding to the pairs (x, ƒ(x)) for x in the domain of ƒ.

• Imaginary part of a complex number

See Complex number.

• Inferential statistics

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

• Logistic regression

A procedure for fitting a logistic curve to a set of data

• Mean (of a set of data)

The sum of all the data divided by the total number of items

• Midpoint (in a coordinate plane)

For the line segment with endpoints (a,b) and (c,d), (aa + c2 ,b + d2)

• Modified boxplot

A boxplot with the outliers removed.

• 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.

• Phase shift

See Sinusoid.

• Real zeros

Zeros of a function that are real numbers.

• Reflexive property of equality

a = a

• Rose curve

A graph of a polar equation or r = a cos nu.

• Standard representation of a vector

A representative arrow with its initial point at the origin

• Sum of complex numbers

(a + bi) + (c + di) = (a + c) + (b + d)i

• Vertical line

x = a.

• z-axis

Usually the third dimension in Cartesian space.

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