A line segment is bisected by a line with the equation # - 9 y + 4 x = 6 #. If one end of the line segment is at #( 7 , 1 )#, where is the other end?
The coordinate of any point on the straight line represented by equation
The coordinate of one end of the given line segment is (7,1).
Let the coordinate of other end be (h,k).
Hence the coordinate of its middle point is
The given line having equation
So the mid point of the line segment is lying on the given straight line.
Hence its coordinate will satisfy the given equation.
Inserting x for h and y for k we get an equation of the straight line
Hence the coordinate of any point on the straight line represented by equation