Mathematics: A Practical Odyssey
Mathematics: A Practical Odyssey
8th Edition
ISBN: 9781305104174
Author: David B. Johnson, Thomas A. Mowry
Publisher: Cengage Learning
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Family of Curves
A family of curves is a group of curves that are each described by a parametrization in which one or more variables are parameters. In general, the parameters have more complexity on the assembly of the curve than an ordinary linear transformation. These…
XZ Plane
In order to understand XZ plane, it's helpful to understand two-dimensional and three-dimensional spaces. To plot a point on a plane, two numbers are needed, and these two numbers in the plane can be represented as an ordered pair (a,b) where a and b are…
Euclidean Geometry
Geometry is the branch of mathematics that deals with flat surfaces like lines, angles, points, two-dimensional figures, etc. In Euclidean geometry, one studies the geometrical shapes that rely on different theorems and axioms. This (pure mathematics) ge…
Lines and Angles
In a two-dimensional plane, a line is simply a figure that joins two points. Usually, lines are used for presenting objects that are straight in shape and have minimal depth or width.
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Chapter D, Problem 4E
To determine

(a)

To find:

The point of intersection of the equations y=−7x+12 and y=−12x−71

To determine

(b)

To check:

The solution by substituting the ordered pair into each of the two equations.

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How would I find a and b, based on the given points?
In Exercises 37–38, graph the two equations and find the points at which the graphs intersect. 37. y = 2x, x2 + y2 = 1 38. y - x = 1, y = x2
Use a graphing calculator to find the approximate point of intersection of the pair of equations 2.5x +3.6y = 12.3 , y=1.2 In(x-2.24) round to thousandth place

Chapter D Solutions

Mathematics: A Practical Odyssey

Ch. D - Prob. 1ECh. D - Prob. 2ECh. D - Prob. 3ECh. D - Prob. 4ECh. D - Prob. 5ECh. D - Prob. 6E
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