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