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If (a,b) is a point in the xy-plane, then the distance between (a, b) and the x-axis is |b| and the distance between (a,b) and the y-axis is |a|.
Quantity A
The total number of points P in the xy-plane such that the distance between P and one of the axes is 10 and the distance between P and the other axis is 8
Quantity B
The total number of points Q in the xy-plane such that the distance between Q and one of the axes is 5 and the distance between Q and the other axis is 4
C显示答案
· 相关考点
3.7.1 坐标系与直线方程
3.7.1 坐标系与直线方程
以上解析由 考满分老师提供。
