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21 October, 08:58

The general form of the equation of a circle is Ax2 + By2 + Cx + Dy + E = 0, where A = B 0. If the circle has a radius of 3 units and the center lies on the y-axis, which set of values of A, B, C, D, and E might correspond to the circle?

a) a=0 b=0 c=2 d=2 e=3

b) a=1 b=1 c=8 d=0 e=9

c) a=1 b=1, C = 0, D = - 8, and E = 7

d)

A = 1, B = 1, C = 8, D = 8, and E = 3

+3
Answers (2)
  1. 21 October, 09:23
    0
    The answer is definitely NOT B cause i took the test and got that shih wrong
  2. 21 October, 09:35
    0
    We are given the general equation of a circle expressed as Ax2 + By2 + Cx + Dy + E = 0. The standard form of the equation of the circle is (x-h) 2 + (y-k) 2 = r2. Given r equal to 3 and center lies on the y-axis, then the equation becomes (x-0) 2 + (y-k) 2 = 9; x2 + (y-k) 2 = 9; x2 + y2 - 2ky + k2 - 9 = 0; A is equal to 1, b is equal to 1. E is equal to 9. Answer is B
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