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Solutions for Chapter 7.1: Systems of Linear Equations in Two Variables

Precalculus | 4th Edition | ISBN: 9780321559845 | Authors: Robert F. Blitzer

Full solutions for Precalculus | 4th Edition

ISBN: 9780321559845

Precalculus | 4th Edition | ISBN: 9780321559845 | Authors: Robert F. Blitzer

Solutions for Chapter 7.1: Systems of Linear Equations in Two Variables

Solutions for Chapter 7.1
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Textbook: Precalculus
Edition: 4
Author: Robert F. Blitzer
ISBN: 9780321559845

This textbook survival guide was created for the textbook: Precalculus, edition: 4. This expansive textbook survival guide covers the following chapters and their solutions. Chapter 7.1: Systems of Linear Equations in Two Variables includes 115 full step-by-step solutions. Since 115 problems in chapter 7.1: Systems of Linear Equations in Two Variables have been answered, more than 67348 students have viewed full step-by-step solutions from this chapter. Precalculus was written by and is associated to the ISBN: 9780321559845.

Key Calculus Terms and definitions covered in this textbook
  • Absolute value of a real number

    Denoted by |a|, represents the number a or the positive number -a if a < 0.

  • Additive inverse of a real number

    The opposite of b , or -b

  • Basic logistic function

    The function ƒ(x) = 1 / 1 + e-x

  • Cosecant

    The function y = csc x

  • Equally likely outcomes

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

  • Expanded form

    The right side of u(v + w) = uv + uw.

  • Graph of a polar equation

    The set of all points in the polar coordinate system corresponding to the ordered pairs (r,?) that are solutions of the polar equation.

  • Identity properties

    a + 0 = a, a ? 1 = a

  • Inverse properties

    a + 1-a2 = 0, a # 1a

  • Logarithmic form

    An equation written with logarithms instead of exponents

  • Measure of an angle

    The number of degrees or radians in an angle

  • n factorial

    For any positive integer n, n factorial is n! = n.(n - 1) . (n - 2) .... .3.2.1; zero factorial is 0! = 1

  • Quadrantal angle

    An angle in standard position whose terminal side lies on an axis.

  • Recursively defined sequence

    A sequence defined by giving the first term (or the first few terms) along with a procedure for finding the subsequent terms.

  • Reflection across the x-axis

    x, y and (x,-y) are reflections of each other across the x-axis.

  • Slope-intercept form (of a line)

    y = mx + b

  • Standard position (angle)

    An angle positioned on a rectangular coordinate system with its vertex at the origin and its initial side on the positive x-axis

  • Stemplot (or stem-and-leaf plot)

    An arrangement of a numerical data set into a specific tabular format.

  • Symmetric difference quotient of ƒ at a

    ƒ(x + h) - ƒ(x - h) 2h

  • Vertical translation

    A shift of a graph up or down.

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