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Solutions for Chapter 4.2: Precalculus 5th Edition

Precalculus | 5th Edition | ISBN: 9780321837349 | Authors: Rober F. Blitzer

Full solutions for Precalculus | 5th Edition

ISBN: 9780321837349

Precalculus | 5th Edition | ISBN: 9780321837349 | Authors: Rober F. Blitzer

Solutions for Chapter 4.2

This textbook survival guide was created for the textbook: Precalculus, edition: 5. Precalculus was written by and is associated to the ISBN: 9780321837349. This expansive textbook survival guide covers the following chapters and their solutions. Since 10 problems in chapter 4.2 have been answered, more than 11020 students have viewed full step-by-step solutions from this chapter. Chapter 4.2 includes 10 full step-by-step solutions.

Key Calculus Terms and definitions covered in this textbook
  • Annual percentage yield (APY)

    The rate that would give the same return if interest were computed just once a year

  • Axis of symmetry

    See Line of symmetry.

  • Categorical variable

    In statistics, a nonnumerical variable such as gender or hair color. Numerical variables like zip codes, in which the numbers have no quantitative significance, are also considered to be categorical.

  • Compounded monthly

    See Compounded k times per year.

  • Demand curve

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

  • Dependent variable

    Variable representing the range value of a function (usually y)

  • Elimination method

    A method of solving a system of linear equations

  • equation of a parabola

    (x - h)2 = 4p(y - k) or (y - k)2 = 4p(x - h)

  • 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 width of a parabola

    The length of the chord through the focus and perpendicular to the axis.

  • Horizontal shrink or stretch

    See Shrink, stretch.

  • Intercepted arc

    Arc of a circle between the initial side and terminal side of a central angle.

  • Midpoint (in Cartesian space)

    For the line segment with endpoints (x 1, y1, z 1) and (x2, y2, z2), ax 1 + x 22 ,y1 + y22 ,z 1 + z 22 b

  • Minor axis

    The perpendicular bisector of the major axis of an ellipse with endpoints on the ellipse.

  • Natural numbers

    The numbers 1, 2, 3, . . . ,.

  • Open interval

    An interval that does not include its endpoints.

  • Randomization

    The principle of experimental design that makes it possible to use the laws of probability when making inferences.

  • Regression model

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

  • Right triangle

    A triangle with a 90° angle.

  • Time plot

    A line graph in which time is measured on the horizontal axis.

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