Let `(2,-1)` be the point P and `x- y + 1 =0` be the straight line l. If `Q` is image of point P about line, that image of point Q about y-axis is

The image of the point P (2,1) on the straight line 2x - 3y + 1 = 0 is

If the image of point P(2,3) in a line L is Q(4,5) then,the image of point R(0,0) in the same line is:

Let P be the foot of perpendicular drawn from a point Q on the line x + y +4 = 0 to the line 5x + y = 0. If P is the image of point R(12, 0) about the line x + y = 2, then coordinates of Q are

Let P be the foot of perpendicular drawn from a point Q on the line x + y +4 = 0 to the line 5x + y = 0. If P is the image of point R(12, 0) about the line x + y = 2, then coordinates of Q are

If the image of point P(2, 3) in a line L is Q (4,5) then, the image of point R (0,0) in the same line is:

The image of P(a,b) on the line y=-x is Q and the image of Q on the line y=x

The point Q is the image of the point P(1,5) about the line y=x and R is the image of the point Q about the line y= -x . The circumcentre of the DeltaPQR is

The point Q is the image of the point P(1,5) about the line y=x and R is the image of the point Q about the line y=-x. The circumcentre is the DeltaPQR is

Let P be the point (4, 1) and Q be its image in the line y = x. If Q is translated through a distance 2 units along the negative Y-axis to reach the point R, then the co-ordinates of R are

Let P (x_1,y_1) be a point and let ax + by+ c = 0 be a line. If L (h, k) is the foot of perpendicular drawn from P on this line and Q (alpha, beta) is the image of P in the given line, then prove that