Mathematics
Junior High
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( )如右圖,P、Q 兩點均在二次函數y= 1 < 的圖形上,其中P點在
第一象限,Q 點在第二象限,若圓P與x軸、y軸及水平線L相切,
圓Q與y軸及水平線[相切,求Q點的x坐標為何?
(A) −5 (B) −5.5 (C) -6 (D) -6.5
L
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