find the point on the line x + 2y = 2 that is closest to the origin, by the method of elimination and also by lagrange's method.
Prove that your result is indeed a minimum.

Question

find the point on the line x + 2y = 2 that is closest to the origin, by the method of elimination and also by lagrange's method. 
Prove that your result is indeed a minimum.

amistre64 · Answer

determine the perp line that goes through the origin; and see where they cross

amistre64 · Answer

not quite sure what a lagrange method is :/

amistre64 · Answer

x + 2y = 2
2x - y = 0

  x + 2y = 2
4x - 2y = 0
-----------
5x        = 2 ,     x = 2/5, therefore y = 4/5

anonymous · Answer

@mahmit2012 dudeee ?

anonymous · Answer

@Hero dude ??

hero · Answer

What's wrong with what @amistre64 showed?

anonymous · Answer

@Hero it is absolutely not about lagrange method :/

hero · Answer

I'm not familiar with lagrange method either

anonymous · Answer

okey then ./

hero · Answer

If I had time, I could look into it for you, but I don't have time

anonymous · Answer

thanks again