问答题In the xy plane, is the point (4, -2) on the line l? (1) Point (1, 1) is on line l. (2) The equation x=2-y describes line l.
题目
问答题
In the xy plane, is the point (4, -2) on the line l? (1) Point (1, 1) is on line l. (2) The equation x=2-y describes line l.
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