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 point of intersection of the line x + y = 1 with the curve 4x2+4y2+4x-2y-5=0 are at right angles to each other.