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10 questions from this quiz
x2+y2=64x^2 + y^2 = 64x2+y2=64
r=9r = 9r=9
Yes, gives 169=169169 = 169169=169
(0,6)(0, 6)(0,6) and (0,−6)(0, -6)(0,−6)
x2+y2=81x^2 + y^2 = 81x2+y2=81
Upper semicircle
Left semicircle
[−4,4][-4, 4][−4,4]
[−3,3][-3, 3][−3,3]
Upper or right semicircle
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