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Foot of Perpendicular and Image
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The very important Foot of Perpendicular and Images are discussed in this video along with the multiple examples.

Sachin Rana is teaching live on Unacademy Plus

Sachin Rana
IIIrd Year UG, IIT Bombay | YouTuber with over 127k subscribers at Sachin Rana [IITB] | Organic Chemistry & Maths Expert.

Comments
(8)
U
Unacademy user
K
mind storming question ......nice explanation
Sir, is the image : (y+2)^2 = -(x+3). Using the fact that the line containing the image is perpendicular to the mirror and will have slope 1 we can consider some point on the image and putting that back in the equation of the parabola given to get the image.
Sachin Rana
a year ago
Yes, correct. Very good.
let the equation of parabola is x=ay^2+by+C assume some point on given parabola find its image and pit it in the equation the find the value of a b c
Sachin Rana
a year ago
I believe this won't be the correcr method. 3 variables.
Aditya Singh
a year ago
but my answer is right sir
Shreyas Raibole
2 months ago
assume x to be some variable and rewrite y in terms of it
(y+2)^2=-(x+3) Assume the points on parabola, then find the image After find image remove the parameter that we have assumed and the equation obtained will be our required image
Sachin Rana
a year ago
Yes, correct. Very good.
FR
Sir ,if the question was asked for a point at maximum distance instead of minimum distance then how shall we proceed?
(y+2) whole square = -(x+3
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