Math help?

Point A(1,3,-4) is on plane x-2y+z+3=0. Find point B(a,b,c) that's symmetrical to point A.

Sorry the translation is a bit rough.

Comments

  • I don't know.

    Drop out and become a stripper is my best advice.

  • No, no! Take it away!

    TAKE IT AWAY!

  • Yeah, people would pay to not see me naked.

    I don't know. Drop out and become a stripper is my best advice.

  • Brings back memories, doesn't it?

    BigBlindMax posted: »

    No, no! Take it away! TAKE IT AWAY!

  • Finda a garbage can and drop that shit away.

  • Eh, I'm not sure why but for some reason I think you've come to the wrong place :P

  • I have a PhD degree, but I can't understand the problem. If the point lies on the plain, how does the x,y,z values not match the equation? I mean 1-6+4+3 is not 0! So the plain is the symmetry "axis"? Is it what you wanted to say?

  • I just write it like I see it. I have no idea,lol.

    Mawula posted: »

    I have a PhD degree, but I can't understand the problem. If the point lies on the plain, how does the x,y,z values not match the equation? I mean 1-6+4+3 is not 0! So the plain is the symmetry "axis"? Is it what you wanted to say?

  • Yes, I can see that now.

    TheCatWolf posted: »

    Eh, I'm not sure why but for some reason I think you've come to the wrong place :P

  • Too bad it's online.

    MarijaaNo7 posted: »

    Finda a garbage can and drop that shit away.

  • The task seems kinda weird, you in high school or?

    Charlieh65 posted: »

    Too bad it's online.

  • Can you take a screenshot or something?

    Charlieh65 posted: »

    I just write it like I see it. I have no idea,lol.

  • I believe the equation is mean to represent the symmetrical point you're supposed to find. I could be wrong.

    Mawula posted: »

    I have a PhD degree, but I can't understand the problem. If the point lies on the plain, how does the x,y,z values not match the equation? I mean 1-6+4+3 is not 0! So the plain is the symmetry "axis"? Is it what you wanted to say?

  • edited October 2015

    It would be +-4

    Still doesn't match the figure graphed though.

    Mawula posted: »

    I have a PhD degree, but I can't understand the problem. If the point lies on the plain, how does the x,y,z values not match the equation? I mean 1-6+4+3 is not 0! So the plain is the symmetry "axis"? Is it what you wanted to say?

  • University.

    MarijaaNo7 posted: »

    The task seems kinda weird, you in high school or?

  • It's not in english tho. You wouldn't understand a thing.

    TheCatWolf posted: »

    Can you take a screenshot or something?

  • It's okay people. My friend solved it for me. Thanks for trying.

  • I used to be good at math, then I got these kind jammed through my head.

    Sorry, I can't help you on this one, mate. This is a completely foreign language to me. No matter how much I try, I simply can't understand why or how in heaven's name it works.

  • edited October 2015

    What's the language? I'm not English too.
    I believe you have to produce the equation of the line ortogonal to the plane. I do not remember the formula, but there definitely was one. The line must contain the point A. Then you can find the distance from the point A to the plane, and then find the point B as belonging to the same line and being at the same distance from the plane.
    Oh, I saw you got it done. Congrats :)

    Charlieh65 posted: »

    It's not in english tho. You wouldn't understand a thing.

  • edited October 2015

    Man, I was so good at math before. Statistics and Calc was my jam. The fucking break has turned me into a retard!!!

    You're gonna have to find help some place else mate. :(

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