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Homework Help: Finding the focus points of a hyperbola

  1. Nov 10, 2015 #1
    1. The problem statement, all variables and given/known data
    So I have the following hyperbola

    x^2/4 - y^2/4 = -1

    I need to find the focus points of this hyperbola. What is some analytical way to do this ?

    Thank yoU!

    2. Relevant equations
    I don't know...

    3. The attempt at a solution

    I need some analytical way to be able to do this. Can somebody give me a hint ?
  2. jcsd
  3. Nov 10, 2015 #2


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    Staff Emeritus
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    Use a double $ on this site for LaTeX

  4. Nov 10, 2015 #3
    Oh thank you for telling me !
  5. Nov 10, 2015 #4


    Staff: Mentor

    In future posts, you need to show more of an effort than you did here. If you don't, you will get infraction points.
    Or equivalently, ##\frac{y^2}{4} - \frac{x^2}{4} = 1##.
    This is a form that is simpler to work with.
    See https://en.wikipedia.org/wiki/Hyperbola.
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