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

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)

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 coincide. 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 coincide:(iii)6x-3y+10=0 ;2x-y+9=0

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

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

Graphically, the pair of equations 6x - 3y+10 = 0 2x - y + 9 = 0 represents two lines which are

Graphically, the pair of equations 6x - 3y+10 = 0 2x - y + 9 = 0 represents two lines which are