`x+y=0,2x-y=9`

The orthocentre of the triangle formed by the lines x-2y+9=0,x+y-9=0,2x-y-9=0 is

The orthocentre of the triangle formed by the lines x-2y+9= 0, x + y -9 =0, 2x -y-9=0is

6x-3y+10=0,2x-y+9=0

The area of the parallelogram formed by lines 2x-y+3=0, 3x+4y-6=0,2x-y+9=0, 3x+4y+4=0 is (in sq units)

Let P S be the median of the triangle with vertices P(2,2),Q(6,-1)a n dR(7,3) Then equation of the line passing through (1,-1) and parallel to P S is 2x-9y-7=0 2x-9y-11=0 2x+9y-11=0 2x+9y+7=0

Let P S be the median of the triangle with vertices P(2,2),Q(6,-1)a n dR(7,3) Then equation of the line passing through (1,-1) and parallel to P S is 2x-9y-7=0 2x-9y-11=0 2x+9y-11=0 2x+9y+7=0

Find the line passing through the point of intersection of the lines x-3y+1=0, 2x+5y=9 and (i) parallel to y-2x=0 (ii) perpendicular to 2x+y-5=0

By comparing the ratios (a_1)/(a_2),(b_1)/(b_2),(c_1)/(c_2) , find out whether the represented by the following pairs of linear equations intersect at a point, are parallel or are coincident. 6x-3y+10=0 , 2x-y+9=0.

On comparing the ratios (a_(1))/(a_(2)), (b_(1))/(b_(2)) and (c_(1))/(c_(2)) , find out whether the lines representing the following pairs of linear equations intersect at a point, are parallel or coincident: 6x- 3y+10=0 2x-y+ 9=0