If x>0 and y<0, then the point `(x, -y)` lies in

The asymptotes of the hyperbola x y=h x+k y are x-k=0 and y-h=0 x+h=0 and y+k=0 x-k=0 and y+h=0 x+k=0 and y-h=0

Solve for x and y : 0.4 x - 1.5 y = 6.5 , 0.3 x + 0.2 y = 0.9 .

Solve for x and y: 0.4x-1.5y=6.5, 0.3x+0.2y=0.9

cos (x+y) dy =dx , when x =0 and y =0

Draw the graphs of x = 0 and y = 0

The asymptotes of the hyperbola xy=hx+ky are x-k=0 and y-h=0x+h=0 and y+k=0x-k=0 and y+h=0x+k=0 and y-h=0

If OA and OB are equal perpendicular chords of the circles x^(2)+y^(2)-2x+4y=0, then the equations of OA and OB are,where O is the origin.3x+y=0 and 3x-y=03x+y=0 and 3y-x=0x+3y=0 and y-3x=0x+y=0 and x-y=0 and y-3x=0

The joint equation of the line x-y=0 and x+y=0 is