If `2x+3y=0` and `4x-3y=0`then `(x+y)` equals `

If the lines x+3y-9=0, 4x+by-2=0 and 2x-y-4=0 are concurrent, then b equals

2x+3y=0 3x+4y=5

If x + y -7 =0 and 3x + y -13 = 0 . then what is 4x^(2) + y^(2) + 4xy equal to?

If x+y-7=0 and 3x+y-13=0 , then what is 4x^(2)+y^(2)+4xy equal to ?

Two regression lines are represented by 2x+3y -10=0 and 4x + y-5=0 Find the line of regression of y on x.

If the lines x +3y -9 = 0, 4x + by -2 = 0 and 2x -y -4 = 0 are concurrent , the b is equal to

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

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, (i) 3x+y=0 and 3x-y=0 (ii) 3x+y=0 and 3y-x=0 (iii) x+3y=0 and y-3x=0 (iv) x+y=0 and x-y=0

If O Aa n dO B are equal perpendicular chords of the circles x^2+y^2-2x+4y=0 , then the equations of O Aa n dO B are, where O is the origin. 3x+y=0 and 3x-y=0 3x+y=0 and 3y-x=0 x+3y=0 and y-3x=0 x+y=0 and x-y=0

If O Aa n dO B are equal perpendicular chords of the circles x^2+y^2-2x+4y=0 , then the equations of O Aa n dO B are, where O is the origin. (a) 3x+y=0 and 3x-y=0 (b) 3x+y=0 and 3y-x=0 (c) x+3y=0 and y-3x=0 (d) x+y=0 and x-y=0