When the axes are rotated through an angle 90° the equation 5x – 2y + 7 = 0 transforms to `(A) 2X - 5Y+7=0 (B) 2X + 5Y - 7 = 0 (C) 2x - 5Y – 7=0 (D) 2X + 5Y +7= 0`

When the axes rotated through an angle 90^(0) .The equation 5x-2y+7=0 transforms to pX+qY+r=0 Then 2p+q+r=

5x - y - 7 = 0 , x - y + 1 = 0

5x - 7 y - 5 =0 , 2x + ky - 1 =0

The coefficient of the variable y in linear equation 5(2x-y)+3x+4y-7=0

Two sides of a triangle are 2x -y =0 and x + y = 3. If its centroid is (2, 3) its third side is (A) x + 5y – 9 = 0 (B) 5x – Y – 9 = 0 (C) x + 5y + 9 = 0 D) 5x – y + 9 = 0

Two consecutive sides of a parallelogram are 4x+5y=0a d n7x+2y=0. If the equation of one diagonal is 11 x+7y=9, Equation of other diagonal : (A) 11x + 7y =0 (B) 3x - 5y + 5 = 0 (C) 7x + 11y = 0 (D) 3x + 5y + 5 =0

(i) 7x^(2) + 16x - 15 = 0 (ii) 5y^(2)+ 8y - 21 = 0

I. 5x^(2) + 2x - 3 = 0" "II. 2y^(2) + 7y + 6 = 0

I. x^(2) - 5x - 14 = 0" "II. Y^(2) + 7y + 10 = 0