Question

12 If & Chik) is the foot of the perpendicular from P(x, y) on the straight line axtby +C =0, then ChrxJi a= {K-y,J: 6=- - (ax, tby, tc): (a +6²)​

Answer 1

Answer:

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Step-by-step explanation:

`Q(h, k)` is the image of the point `P(x_1, y_1)` w.r.to the straight line `ax +by+c=0 `then prove that `(h-x_1): a =(k - y_1):b=-2(ax_1 +by_1 +c): a^2+b^2` or `(h-x_1)/a=(k-y_1)/b=(-2(ax_1+by_1+c))/(a^2+b^2)` and find the image of `(1,-2)` w.r.t the straight line `2x-3y+5=0`