College Algebra (6th Edition)
College Algebra (6th Edition)
6th Edition
ISBN: 9780321916600
Author: Mark Dugopolski
Publisher: PEARSON
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Maximization
Have you ever seen a bridge in the shape of a parabola? Where is its maximum on the bridge? The maximum of that bridge is the highest point on that bridge. The process of finding the maximum of the bridge here is called the maximization.
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Chapter 7.1, Problem 65E

Find the vertex, axis of symmetry, x-intercept, y-intercepts, focus, and directrix for each parabola. Sketch the graph, showing the focus and directrix.

x = − y 2

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Graph the equation. Identify the focus and directrix of the parabola. y² Clear All Draw: ∙10-9-8-7 -6 -5 -4 -3 -2 -11 -2 -3 Focus: 10 Directrix: 9 8 7 6 5 4 3 2 1 2 3 -4 -5 -6 -7 -8 -9 -10 ^< 5 6 7 8 9 10 = -4x

Chapter 7 Solutions

College Algebra (6th Edition)

Ch. 7.1 - True or False? Explain. A parabola with focus (0,...Ch. 7.1 - Prob. 2FTCh. 7.1 - Prob. 3FTCh. 7.1 - Prob. 4FTCh. 7.1 - Prob. 5FTCh. 7.1 - Prob. 6FTCh. 7.1 - Prob. 7FTCh. 7.1 - Prob. 8FTCh. 7.1 - Prob. 9FTCh. 7.1 - Prob. 10FT
Ch. 7.1 - Fill in the blank. A curve obtained by...Ch. 7.1 - Prob. 2ECh. 7.1 - Prob. 3ECh. 7.1 - Prob. 4ECh. 7.1 - Each of the following graphs shows a parabola...Ch. 7.1 - Prob. 6ECh. 7.1 - Prob. 7ECh. 7.1 - Prob. 8ECh. 7.1 - Each of the following graphs shows a parabola...Ch. 7.1 - Prob. 10ECh. 7.1 - Find the equation of the parabola with the given...Ch. 7.1 - Prob. 12ECh. 7.1 - Find the equation of the parabola with the given...Ch. 7.1 - Prob. 14ECh. 7.1 - Find the equation of the parabola with the given...Ch. 7.1 - Prob. 16ECh. 7.1 - Find the equation of the parabola with the given...Ch. 7.1 - Prob. 18ECh. 7.1 - Find the equation of the parabola with the given...Ch. 7.1 - Prob. 20ECh. 7.1 - Prob. 21ECh. 7.1 - Prob. 22ECh. 7.1 - Prob. 23ECh. 7.1 - Prob. 24ECh. 7.1 - Determine the vertex, focus, and directrix for...Ch. 7.1 - Prob. 26ECh. 7.1 - Prob. 27ECh. 7.1 - Prob. 28ECh. 7.1 - Determine the vertex, focus, and directrix for...Ch. 7.1 - Prob. 30ECh. 7.1 - Prob. 31ECh. 7.1 - Prob. 32ECh. 7.1 - Prob. 33ECh. 7.1 - Prob. 34ECh. 7.1 - Prob. 35ECh. 7.1 - Prob. 36ECh. 7.1 - Prob. 37ECh. 7.1 - Prob. 38ECh. 7.1 - Prob. 39ECh. 7.1 - Prob. 40ECh. 7.1 - Find the vertex, focus, and directrix of each...Ch. 7.1 - Prob. 42ECh. 7.1 - Prob. 43ECh. 7.1 - Prob. 44ECh. 7.1 - Prob. 45ECh. 7.1 - Prob. 46ECh. 7.1 - Find the vertex, focus, and directrix of each...Ch. 7.1 - Prob. 48ECh. 7.1 - Prob. 49ECh. 7.1 - Prob. 50ECh. 7.1 - Prob. 51ECh. 7.1 - Prob. 52ECh. 7.1 - Find the vertex, axis of symmetry, x-intercepts,...Ch. 7.1 - Find the vertex, axis of symmetry, x-intercepts,...Ch. 7.1 - Find the vertex, axis of symmetry, x-intercepts,...Ch. 7.1 - Prob. 56ECh. 7.1 - Find the vertex, axis of symmetry, x-intercepts,...Ch. 7.1 - Find the vertex, axis of symmetry, x-intercepts,...Ch. 7.1 - Find the vertex, axis of symmetry, x-intercepts,...Ch. 7.1 - Prob. 60ECh. 7.1 - Prob. 61ECh. 7.1 - Prob. 62ECh. 7.1 - Prob. 63ECh. 7.1 - Prob. 64ECh. 7.1 - Find the vertex, axis of symmetry, x-intercept,...Ch. 7.1 - Prob. 66ECh. 7.1 - Prob. 67ECh. 7.1 - Prob. 68ECh. 7.1 - Prob. 69ECh. 7.1 - Prob. 70ECh. 7.1 - Find the vertex, axis of symmetry, x-intercept,...Ch. 7.1 - Prob. 72ECh. 7.1 - Prob. 73ECh. 7.1 - Prob. 74ECh. 7.1 - Prob. 75ECh. 7.1 - Prob. 76ECh. 7.1 - Prob. 77ECh. 7.1 - Prob. 78ECh. 7.1 - Find the equation of the parabola determined by...Ch. 7.1 - Prob. 80ECh. 7.1 - Solve each problem. The Hale Telescope The focus...Ch. 7.1 - Prob. 82ECh. 7.1 - Prob. 83ECh. 7.1 - Prob. 84ECh. 7.1 - Prob. 85ECh. 7.1 - Prob. 86ECh. 7.1 - Prob. 87ECh. 7.1 - Prob. 88ECh. 7.1 - Prob. 89ECh. 7.1 - Prob. 90ECh. 7.1 - Prob. 91ECh. 7.1 - Prob. 92ECh. 7.1 - Prob. 93ECh. 7.1 - Prob. 94ECh. 7.1 - Prob. 95ECh. 7.1 - Prob. 96ECh. 7.1 - Prob. 1PQCh. 7.1 - Find the vertex, focus, and directrix for Ch. 7.1 - Prob. 3PQCh. 7.1 - For Individual or Group Explorations Tangent...Ch. 7.2 - True or False? Explain. 1. The x-intercepts for ...Ch. 7.2 - Prob. 2FTCh. 7.2 - Prob. 3FTCh. 7.2 - Prob. 4FTCh. 7.2 - Prob. 5FTCh. 7.2 - Prob. 6FTCh. 7.2 - Prob. 7FTCh. 7.2 - Prob. 8FTCh. 7.2 - Prob. 9FTCh. 7.2 - True or False? Explain. 10. The radius of the...Ch. 7.2 - Fill in the blank. The set of all points in a...Ch. 7.2 - Prob. 2ECh. 7.2 - Prob. 3ECh. 7.2 - Prob. 4ECh. 7.2 - Each of the following graphs shows an ellipse...Ch. 7.2 - Prob. 6ECh. 7.2 - Each of the following graphs shows an ellipse...Ch. 7.2 - Prob. 8ECh. 7.2 - Find the equation of each ellipse described below...Ch. 7.2 - Find the equation of each ellipse described below...Ch. 7.2 - Find the equation of each ellipse described below...Ch. 7.2 - Prob. 12ECh. 7.2 - Find the equation of each ellipse described below...Ch. 7.2 - Prob. 14ECh. 7.2 - Find the equation of each ellipse described below...Ch. 7.2 - Prob. 16ECh. 7.2 - Sketch the graph of each ellipse and identify the...Ch. 7.2 - Sketch the graph of each ellipse and identify the...Ch. 7.2 - Sketch the graph of each ellipse and identify the...Ch. 7.2 - Prob. 20ECh. 7.2 - Prob. 21ECh. 7.2 - Sketch the graph of each ellipse and identify the...Ch. 7.2 - Prob. 23ECh. 7.2 - Prob. 24ECh. 7.2 - Prob. 25ECh. 7.2 - Prob. 26ECh. 7.2 - Prob. 27ECh. 7.2 - Prob. 28ECh. 7.2 - Sketch the graph of each ellipse and identify the...Ch. 7.2 - Prob. 30ECh. 7.2 - Prob. 31ECh. 7.2 - Prob. 32ECh. 7.2 - Prob. 33ECh. 7.2 - Prob. 34ECh. 7.2 - Prob. 35ECh. 7.2 - Prob. 36ECh. 7.2 - Sketch the graph of each ellipse and identify the...Ch. 7.2 - Prob. 38ECh. 7.2 - Find the equation of each ellipse and identify its...Ch. 7.2 - Prob. 40ECh. 7.2 - Find the equation of each ellipse and identify its...Ch. 7.2 - Prob. 42ECh. 7.2 - Prob. 43ECh. 7.2 - Prob. 44ECh. 7.2 - Prob. 45ECh. 7.2 - Prob. 46ECh. 7.2 - Prob. 47ECh. 7.2 - Prob. 48ECh. 7.2 - Prob. 49ECh. 7.2 - Prob. 50ECh. 7.2 - Prob. 51ECh. 7.2 - Prob. 52ECh. 7.2 - Prob. 53ECh. 7.2 - Prob. 54ECh. 7.2 - Prob. 55ECh. 7.2 - Prob. 56ECh. 7.2 - Prob. 57ECh. 7.2 - Prob. 58ECh. 7.2 - Prob. 59ECh. 7.2 - Prob. 60ECh. 7.2 - Prob. 61ECh. 7.2 - Prob. 62ECh. 7.2 - Prob. 63ECh. 7.2 - Prob. 64ECh. 7.2 - Prob. 65ECh. 7.2 - Prob. 66ECh. 7.2 - Prob. 67ECh. 7.2 - Prob. 68ECh. 7.2 - Prob. 69ECh. 7.2 - Prob. 70ECh. 7.2 - Prob. 71ECh. 7.2 - Prob. 72ECh. 7.2 - Prob. 73ECh. 7.2 - Prob. 74ECh. 7.2 - Write each of the following equations in one of...Ch. 7.2 - Prob. 76ECh. 7.2 - Prob. 77ECh. 7.2 - Prob. 78ECh. 7.2 - Prob. 79ECh. 7.2 - Prob. 80ECh. 7.2 - Solve each problem. 81. Foci and a Point Find the...Ch. 7.2 - Solve each problem. Foci and Eccentricity Find the...Ch. 7.2 - Solve each problem. Focus of Elliptical Reflector...Ch. 7.2 - Prob. 84ECh. 7.2 - Solve each problem. Comet Hale-Bopp Comet...Ch. 7.2 - Prob. 86ECh. 7.2 - Prob. 87ECh. 7.2 - Solve each problem. Adjacent Circles A...Ch. 7.2 - Prob. 89ECh. 7.2 - Solve each problem. 90. Orbit of Mir The...Ch. 7.2 - Solve each problem. Tangent to an Ellipse It can...Ch. 7.2 - Prob. 92ECh. 7.2 - Prob. 93ECh. 7.2 - Prob. 94ECh. 7.2 - Prob. 95ECh. 7.2 - Prob. 96ECh. 7.2 - Prob. 97ECh. 7.2 - Prob. 98ECh. 7.2 - Prob. 99ECh. 7.2 - Prob. 100ECh. 7.2 - Prob. 101ECh. 7.2 - Prob. 102ECh. 7.2 - Prob. 103ECh. 7.2 - Prob. 104ECh. 7.2 - Prob. 1PQCh. 7.2 - Prob. 2PQCh. 7.2 - Prob. 3PQCh. 7.2 - Prob. LCCh. 7.3 - True or False? Explain. 1. The graph of is a...Ch. 7.3 - Prob. 2FTCh. 7.3 - Prob. 3FTCh. 7.3 - Prob. 4FTCh. 7.3 - Prob. 5FTCh. 7.3 - Prob. 6FTCh. 7.3 - Prob. 7FTCh. 7.3 - Prob. 8FTCh. 7.3 - Prob. 9FTCh. 7.3 - Prob. 10FTCh. 7.3 - Prob. 1ECh. 7.3 - Prob. 2ECh. 7.3 - Prob. 3ECh. 7.3 - Prob. 4ECh. 7.3 - Each of the following graphs shows a hyperbola...Ch. 7.3 - Prob. 6ECh. 7.3 - Prob. 7ECh. 7.3 - Prob. 8ECh. 7.3 - Determine the foci and the equations of the...Ch. 7.3 - Prob. 10ECh. 7.3 - Determine the foci and the equations of the...Ch. 7.3 - Prob. 12ECh. 7.3 - Determine the foci and the equations of the...Ch. 7.3 - Prob. 14ECh. 7.3 - Determine the foci and the equations of the...Ch. 7.3 - Prob. 16ECh. 7.3 - Prob. 17ECh. 7.3 - Prob. 18ECh. 7.3 - Prob. 19ECh. 7.3 - Prob. 20ECh. 7.3 - Sketch the graph of each hyperbola. Determine the...Ch. 7.3 - Prob. 22ECh. 7.3 - Prob. 23ECh. 7.3 - Prob. 24ECh. 7.3 - Prob. 25ECh. 7.3 - Sketch the graph of each hyperbola. Determine the...Ch. 7.3 - Prob. 27ECh. 7.3 - Prob. 28ECh. 7.3 - Find the equation of each hyperbola described...Ch. 7.3 - Prob. 30ECh. 7.3 - Prob. 31ECh. 7.3 - Prob. 32ECh. 7.3 - Prob. 33ECh. 7.3 - Prob. 34ECh. 7.3 - Find the equation of each hyperbola.Ch. 7.3 - Prob. 36ECh. 7.3 - Prob. 37ECh. 7.3 - Prob. 38ECh. 7.3 - Prob. 39ECh. 7.3 - Prob. 40ECh. 7.3 - Prob. 41ECh. 7.3 - Prob. 42ECh. 7.3 - Prob. 43ECh. 7.3 - Prob. 44ECh. 7.3 - Rewrite each equation in one of the standard forms...Ch. 7.3 - Prob. 46ECh. 7.3 - Prob. 47ECh. 7.3 - Prob. 48ECh. 7.3 - Prob. 49ECh. 7.3 - Prob. 50ECh. 7.3 - Prob. 51ECh. 7.3 - Prob. 52ECh. 7.3 - Solve each problem. 53. Telephoto Lens The focus...Ch. 7.3 - Prob. 54ECh. 7.3 - Prob. 55ECh. 7.3 - Prob. 56ECh. 7.3 - Prob. 57ECh. 7.3 - Prob. 58ECh. 7.3 - Prob. 59ECh. 7.3 - Prob. 60ECh. 7.3 - Prob. 61ECh. 7.3 - Prob. 62ECh. 7.3 - Prob. 63ECh. 7.3 - Prob. 64ECh. 7.3 - Prob. 65ECh. 7.3 - Prob. 66ECh. 7.3 - Prob. 67ECh. 7.3 - Prob. 68ECh. 7.3 - Transporting a Pipe Two corridors are 8 ft wide...Ch. 7.3 - 70. A Little Lagniappe A regulation basketball in...Ch. 7.3 - Prob. 1PQCh. 7.3 - Prob. 2PQCh. 7.3 - Prob. LCCh. 7 - For Exercises 1–6, sketch the graph of each...Ch. 7 - Prob. 2RECh. 7 - Prob. 3RECh. 7 - Prob. 4RECh. 7 - Prob. 5RECh. 7 - Prob. 6RECh. 7 - Sketch the graph of each ellipse, and determine...Ch. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Sketch the graph of each ellipse, and determine...Ch. 7 - Sketch the graph of each ellipse, and determine...Ch. 7 - Prob. 12RECh. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Prob. 16RECh. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 19RECh. 7 - Prob. 20RECh. 7 - Prob. 21RECh. 7 - Prob. 22RECh. 7 - Prob. 23RECh. 7 - Prob. 24RECh. 7 - Prob. 25RECh. 7 - Prob. 26RECh. 7 - Sketch the graph of each hyperbola. Determine the...Ch. 7 - Prob. 28RECh. 7 - Prob. 29RECh. 7 - Prob. 30RECh. 7 - Prob. 31RECh. 7 - Prob. 32RECh. 7 - Prob. 33RECh. 7 - Prob. 34RECh. 7 - Prob. 35RECh. 7 - Prob. 36RECh. 7 - Prob. 37RECh. 7 - Prob. 38RECh. 7 - Prob. 39RECh. 7 - Prob. 40RECh. 7 - Prob. 41RECh. 7 - Prob. 42RECh. 7 - Prob. 43RECh. 7 - Prob. 44RECh. 7 - Prob. 45RECh. 7 - Prob. 46RECh. 7 - Prob. 47RECh. 7 - Determine the equation of each conic section...Ch. 7 - Prob. 49RECh. 7 - Prob. 50RECh. 7 - Prob. 51RECh. 7 - Prob. 52RECh. 7 - Prob. 53RECh. 7 - Prob. 54RECh. 7 - Prob. 55RECh. 7 - Prob. 56RECh. 7 - Prob. 57RECh. 7 - Prob. 58RECh. 7 - Prob. 59RECh. 7 - Prob. 60RECh. 7 - Solve each problem. Whispering Gallery In the...Ch. 7 - Prob. 62RECh. 7 - Prob. 63RECh. 7 - Prob. 1CTCh. 7 - Prob. 2CTCh. 7 - Prob. 3CTCh. 7 - Prob. 4CTCh. 7 - Prob. 5CTCh. 7 - Prob. 6CTCh. 7 - Prob. 7CTCh. 7 - Prob. 8CTCh. 7 - Prob. 9CTCh. 7 - Determine whether each equation is the equation of...Ch. 7 - Prob. 11CTCh. 7 - Prob. 12CTCh. 7 - Prob. 13CTCh. 7 - Prob. 14CTCh. 7 - Prob. 15CTCh. 7 - Prob. 16CTCh. 7 - Prob. 17CTCh. 7 - Prob. 18CTCh. 7 - Prob. 19CTCh. 7 - Prob. 1TATCh. 7 - Prob. 2TATCh. 7 - Prob. 3TATCh. 7 - Prob. 4TATCh. 7 - Prob. 5TATCh. 7 - Prob. 6TATCh. 7 - Prob. 7TATCh. 7 - Prob. 8TATCh. 7 - Prob. 9TATCh. 7 - Prob. 10TATCh. 7 - Prob. 11TATCh. 7 - Prob. 12TATCh. 7 - Prob. 13TATCh. 7 - Prob. 14TATCh. 7 - Prob. 15TATCh. 7 - Prob. 16TATCh. 7 - Prob. 17TATCh. 7 - Prob. 18TATCh. 7 - Prob. 19TATCh. 7 - Prob. 20TATCh. 7 - Prob. 21TATCh. 7 - Prob. 22TATCh. 7 - Prob. 23TATCh. 7 - Prob. 24TATCh. 7 - Prob. 25TATCh. 7 - Prob. 26TATCh. 7 - Prob. 27TATCh. 7 - Prob. 28TATCh. 7 - Prob. 29TATCh. 7 - Prob. 30TATCh. 7 - Prob. 31TATCh. 7 - Prob. 32TATCh. 7 - Prob. 33TATCh. 7 - Prob. 34TATCh. 7 - Prob. 35TATCh. 7 - Prob. 36TATCh. 7 - Prob. 37TATCh. 7 - Prob. 38TATCh. 7 - Prob. 39TAT

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Finding The Focus and Directrix of a Parabola - Conic Sections; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=KYgmOTLbuqE;License: Standard YouTube License, CC-BY