The graphs of the equations 2x+3y-2=0 and x-2y-8=0 are two lines which are
(c) intersecting exactly at one point
(d) perpendicular to each other
The graphs of the equations 5x-15y=8 and 3x-9y=245 are two lines which are
At what point do the lines of equations 3x + 2y + 5 = 0 and 2x − 3y − 1 = 0 intersects each other? Find one more point on each of these lines. Prove that these lines are perpendicular.
The lines represented by the equation x2+2√3xy+3y2−3x−3√3y−4=0, are
The lines represented by the equation 9x2+24xy+16y2+21x+28y+6=0 are