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# Solutions for Chapter 1.3: Functions and Graphs ## Full solutions for Precalculus: Graphical, Numerical, Algebraic | 8th Edition

ISBN: 9780321656933 Solutions for Chapter 1.3: Functions and Graphs

Solutions for Chapter 1.3
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##### ISBN: 9780321656933

This textbook survival guide was created for the textbook: Precalculus: Graphical, Numerical, Algebraic, edition: 8th Edition. Precalculus: Graphical, Numerical, Algebraic was written by and is associated to the ISBN: 9780321656933. This expansive textbook survival guide covers the following chapters and their solutions. Since 79 problems in chapter 1.3: Functions and Graphs have been answered, more than 42831 students have viewed full step-by-step solutions from this chapter. Chapter 1.3: Functions and Graphs includes 79 full step-by-step solutions.

Key Calculus Terms and definitions covered in this textbook
• Complex number

An expression a + bi, where a (the real part) and b (the imaginary part) are real numbers

• Derivative of ƒ at x a

ƒ'(a) = lim x:a ƒ(x) - ƒ(a) x - a provided the limit exists

• Elimination method

A method of solving a system of linear equations

• Equally likely outcomes

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

• equation of a quadratic function

ƒ(x) = ax 2 + bx + c(a ? 0)

• Finite series

Sum of a finite number of terms.

• Histogram

A graph that visually represents the information in a frequency table using rectangular areas proportional to the frequencies.

• Inverse function

The inverse relation of a one-to-one function.

• Linear combination of vectors u and v

An expression au + bv , where a and b are real numbers

• Parabola

The graph of a quadratic function, or the set of points in a plane that are equidistant from a fixed point (the focus) and a fixed line (the directrix).

• Pie chart

See Circle graph.

• Rational numbers

Numbers that can be written as a/b, where a and b are integers, and b ? 0.

• Slope-intercept form (of a line)

y = mx + b

• Solve algebraically

Use an algebraic method, including paper and pencil manipulation and obvious mental work, with no calculator or grapher use. When appropriate, the final exact solution may be approximated by a calculator

• Sum of a finite arithmetic series

Sn = na a1 + a2 2 b = n 2 32a1 + 1n - 12d4,

• Unbounded interval

An interval that extends to -? or ? (or both).

• Unit circle

A circle with radius 1 centered at the origin.

• Unit ratio

See Conversion factor.

• Work

The product of a force applied to an object over a given distance W = ƒFƒ ƒAB!ƒ.

• 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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