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# Solutions for Chapter 4: Precalculus: Mathematics for Calculus 6th Edition ## Full solutions for Precalculus: Mathematics for Calculus | 6th Edition

ISBN: 9780840068071 Solutions for Chapter 4

Solutions for Chapter 4
4 5 0 311 Reviews
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##### ISBN: 9780840068071

Precalculus: Mathematics for Calculus was written by and is associated to the ISBN: 9780840068071. This expansive textbook survival guide covers the following chapters and their solutions. Chapter 4 includes 106 full step-by-step solutions. Since 106 problems in chapter 4 have been answered, more than 10200 students have viewed full step-by-step solutions from this chapter. This textbook survival guide was created for the textbook: Precalculus: Mathematics for Calculus, edition: 6.

Key Calculus Terms and definitions covered in this textbook
• Cone

See Right circular cone.

• Demand curve

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

• Focal length of a parabola

The directed distance from the vertex to the focus.

• Imaginary part of a complex number

See Complex number.

• Inequality

A statement that compares two quantities using an inequality symbol

• Infinite discontinuity at x = a

limx:a + x a ƒ(x) = q6 or limx:a - ƒ(x) = q.

• Line graph

A graph of data in which consecutive data points are connected by line segments

• Minute

Angle measure equal to 1/60 of a degree.

• Nappe

See Right circular cone.

• Natural logarithmic function

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

• Negative angle

Angle generated by clockwise rotation.

• Normal curve

The graph of ƒ(x) = e-x2/2

• Polar coordinates

The numbers (r, ?) that determine a point’s location in a polar coordinate system. The number r is the directed distance and ? is the directed angle

• Product rule of logarithms

ogb 1RS2 = logb R + logb S, R > 0, S > 0,

• Regression model

An equation found by regression and which can be used to predict unknown values.

• Residual

The difference y1 - (ax 1 + b), where (x1, y1)is a point in a scatter plot and y = ax + b is a line that fits the set of data.

• Second-degree equation in two variables

Ax 2 + Bxy + Cy2 + Dx + Ey + F = 0, where A, B, and C are not all zero.

• Semiminor axis

The distance from the center of an ellipse to a point on the ellipse along a line perpendicular to the major axis.

• Tangent line of ƒ at x = a

The line through (a, ƒ(a)) with slope ƒ'(a) provided ƒ'(a) exists.

• Terminal side of an angle

See Angle.

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