Equations of straight line

2008-05-18 6:06 pm
1) Given two points A(-1,4), B(h,k).
a) Express the coordinates of the mid-point of the line segment AB in
terms of h & k
b) The line x-y-3=0 passes through the mid-point of AB. If it is
perpendicular to AB find the values of h & k

2) 5x-y+9=0, 3x+y-5=0 & x+3y-3=0 are the equations of the sides BC, CA &
AB of triangleABC respecyively. Finding the coorfinates of point A, find
the equation of the altitude from A to BC

回答 (2)

2008-05-18 7:26 pm
✔ 最佳答案
Equations of straight line:

圖片參考:http://i238.photobucket.com/albums/ff245/chocolate328154/Maths246.jpg?t=1211081197


2008-05-18 11:34:59 補充:
Sth is wrong above and I am now correcting it, plx wait for the revised solution.

2008-05-18 11:42:17 補充:
Plx press reload for the corrected answer.
參考: My Maths Knowledge
2008-05-23 6:06 am
1) Given two points A(-1,4), B(h,k).
a) Express the coordinates of the mid-point of the line segment AB in
terms of h & k


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