The image of the point (-8,12) with respect to the line mirror 4x+7y+13=0 is (a) (16,-2) (b) (-16,2) (c) (16,2) (d) (-16,-2)
Answer is option d. (-16,-2)
Explanation:-
Show that the lines joining the origin to the points common to x2 + hxy - y2+ gx + fy = 0 and fx - gy = λ are at the right angles for all values of λ ≠ 0.