67-72 - Graphing Circles Find the center and radius of the circle, and sketch its graph. 67. x² + y² = 9 • 69. (x – 3)² + y² = 16 71. (x + 3)² + (y – 4)² = 25 72. (x + 1)² + (y + 2)² = 36 68. x² + y² = 5 70. x² + (y – 2)² = 4

67-72 - Graphing Circles Find the center and radius of the circle, and sketch its graph. 67. x² + y² = 9 • 69. (x – 3)² + y² = 16 71. (x + 3)² + (y – 4)² = 25 72. (x + 1)² + (y + 2)² = 36 68. x² + y² = 5 70. x² + (y – 2)² = 4

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.2: Graphs Of Equations

Problem 53E

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67–72 ■ Graphing Circles Find the center and radius of the
circle, and sketch its graph.

Two-dimensional figure measured in terms of radius. It is formed by a set of points that are at a constant or fixed distance from a fixed point in the center of the plane. The parts of the circle are circumference, radius, diameter, chord, tangent, secant, arc of a circle, and segment in a circle.

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