Determine the radius of the circle given by .

MATHEMATICS · Single correct · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

Determine the radius of the circle given by

5x^2 + 5y^2 - 20x + 30y - 60 = 0

. (a)

4

(b)

2\sqrt{3}

(c)

5

(d)

6

Related theory

Circle (Standard Equation)
Conic Sections
Coordinate Geometry
Equation of a circle
Functions

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