(2013·长春模拟)如图,在平面直角坐标系中,直线AC与x轴交于点A(4,0),与y轴交于点C(0,4).作OB⊥AC于点B,动点D在边OA上,D(m,0)(0<m<4),过点D作DE⊥OA交折线OB-BA于点E.Rt△GHI的斜边HI在射线AC上,GI∥OA,GI=m,GI与x轴的距离为| m |
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(2012·铁岭)如图所示,在平面直角坐标系中,直线OM是正比例函数y=-| 3 |
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为t(秒).
已知:如图,在平面直角坐标系中,A、B两点分别在x轴,y轴的正半轴上,点A(6,0),∠BAO=30°.