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Solutions for Chapter 7.2: Two-Variable Linear Systems

Full solutions for Precalculus | 7th Edition

ISBN: 9780618643448

Solutions for Chapter 7.2: Two-Variable Linear Systems

Solutions for Chapter 7.2
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Textbook: Precalculus
Edition: 7
Author: Ron Larson, Robert P. Hostetler
ISBN: 9780618643448

This textbook survival guide was created for the textbook: Precalculus, edition: 7. This expansive textbook survival guide covers the following chapters and their solutions. Since 87 problems in chapter 7.2: Two-Variable Linear Systems have been answered, more than 37548 students have viewed full step-by-step solutions from this chapter. Chapter 7.2: Two-Variable Linear Systems includes 87 full step-by-step solutions. Precalculus was written by and is associated to the ISBN: 9780618643448.

Key Calculus Terms and definitions covered in this textbook
  • Base

    See Exponential function, Logarithmic function, nth power of a.

  • Circle

    A set of points in a plane equally distant from a fixed point called the center

  • Common difference

    See Arithmetic sequence.

  • Course

    See Bearing.

  • Dependent event

    An event whose probability depends on another event already occurring

  • Fitting a line or curve to data

    Finding a line or curve that comes close to passing through all the points in a scatter plot.

  • Focal length of a parabola

    The directed distance from the vertex to the focus.

  • Function

    A relation that associates each value in the domain with exactly one value in the range.

  • Leibniz notation

    The notation dy/dx for the derivative of ƒ.

  • Linear regression line

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

  • NDER ƒ(a)

    See Numerical derivative of ƒ at x = a.

  • Normal curve

    The graph of ƒ(x) = e-x2/2

  • Open interval

    An interval that does not include its endpoints.

  • 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

  • Probability function

    A function P that assigns a real number to each outcome O in a sample space satisfying: 0 … P1O2 … 1, P12 = 0, and the sum of the probabilities of all outcomes is 1.

  • Product of functions

    (ƒg)(x) = ƒ(x)g(x)

  • Quartic function

    A degree 4 polynomial function.

  • Quotient of complex numbers

    a + bi c + di = ac + bd c2 + d2 + bc - ad c2 + d2 i

  • Second quartile

    See Quartile.

  • Vector

    An ordered pair <a, b> of real numbers in the plane, or an ordered triple <a, b, c> of real numbers in space. A vector has both magnitude and direction.

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