Write the radius of the circle x^2 + y^2 + 5x - 4y = 0. A]√(29) B]√(41)/2 C]√(41)?
Write the equation in general conic form of the circle that passes through the points (0, 0), (0, 6), and (2, 3).
2x^2 + 2y^2 + ___ x - ___ y = 0
Find the length of the major axis of the equation x^2 + 4y^2 = 4.
2
4
8
Find the length of the minor axis of the equation 4x^2 + 3y^2 - 32x + 12y + 64 = 0.
2√3
2√(11)
4
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First complete the square... it is (x + 5/2)^2 - 25/4 + (y -2)^2 -4 = 0 ==>
((^+5/2)^2 + (y-2)^2 = 41/4 .... then the radius is r = sqrt(41)/2 OK!