发布网友 发布时间:2024-10-23 00:12
共2个回答
热心网友 时间:2024-11-10 00:25
1. y = 0时,-2x+8 = 0, x = 4, A(4, 0)
2. 联立:2x = -2x +8, x =2, y = 4, P(2, 4)
3. △POA的面积 = (1/2)*OA*P的纵坐标= (1/2)*4*4 = 8
4. OP = √(2²+4²) = 2√5
AP = √[(4-2)²+(0-4)²] = 2√5
OP = AP
等腰三角形
热心网友 时间:2024-11-10 00:31
1. y = 0时,-2x+8 = 0, x = 4, A(4, 0)