设点C(x, y ) 因A、B的坐标分别为(-1,2)、(4,3),所以:
(-1 + x)/2 = 0, (3 + y)/2 = 0
x = 1, y = -3
点C的坐标为:(1,-3)
点M(0,- 1/2) ,点N ( 5/2, 0)
直线MN: X /( 5/2) + y/(-1/2) = 1
即:y = x/5 - 1/2
设点C(x, y ) 因A、B的坐标分别为(-1,2)、(4,3),所以:
(-1 + x)/2 = 0, (3 + y)/2 = 0
x = 1, y = -3
点C的坐标为:(1,-3)
点M(0,- 1/2) ,点N ( 5/2, 0)
直线MN: X /( 5/2) + y/(-1/2) = 1
即:y = x/5 - 1/2