Find the general form of the circle with the center (2, -1) and the radius of 3 units. A) (x - 2)^2 + (y + 1)^2 = 9 B) (x + 2^)2 + (y - 1)^2 = 9 C) x^2 + y^2 – 4x + 2y – 4 = 0 D) x^2 + y^2 + 4x - 2y + 4 = 0

Find the general form of the circle with the center (2, -1) and the radius of 3 units. A) (x - 2)^2 + (y + 1)^2 = 9 B) (x + 2^)2 + (y - 1)^2 = 9 C) x^2 + y^2 – 4x + 2y – 4 = 0 D) x^2 + y^2 + 4x - 2y + 4 = 0

Elementary Geometry for College Students

6th Edition

ISBN:9781285195698

Author:Daniel C. Alexander, Geralyn M. Koeberlein

Publisher:Daniel C. Alexander, Geralyn M. Koeberlein

Chapter10: Analytic Geometry

Section10.4: Analytic Proofs

Problem 28E

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Question

Find the general form of the circle with the center (2, -1) and the radius of 3 units.

A) (x - 2)^2 + (y + 1)^2 = 9

B) (x + 2^)2 + (y - 1)^2 = 9

C) x^2 + y^2 – 4x + 2y – 4 = 0

D) x^2 + y^2 + 4x - 2y + 4 = 0

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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