解:(1)(说明:描点正确得1分,坐标填写正确得1分)······················· 2分
(2);;.············································ 5分 (说明:写对一个解析式得1分) (3)设点Q的坐标为,依题意, 解这个方程组,得到点Q的坐标为.················································ 7分 ∵平移的路径长为,∴50≤≤56. ∴37.5≤≤42.························ 9分 而点Q的坐标为正整数,因此点Q的坐标为,.······················· 10分 |