The circle is translated units upward to obtain a new circle

MATHEMATICS · Single correct · AP · AP Precalculus · Polynomial and Rational Functions · Polynomial and Rational Functions

Problem

The circle C1:(x−2)2+y2=9C_1:(x-2)^2 + y^2 = 9 is translated 33 units upward to obtain a new circle C2C_2. Which of the following is the equation of C2C_2? (a) (x−2)2+(y−3)2=12(x-2)^2 + (y-3)^2 = 12 (b) (x−2)2+(y−3)2=9(x-2)^2 + (y-3)^2 = 9 (c) (x−2)2+(y+3)2=9(x-2)^2 + (y+3)^2 = 9 (d) (x+2)2+(y−3)2=9(x+2)^2 + (y-3)^2 = 9

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