How To Find This Quadratic Function?

  1. How to find the below quadratic function?

    y = 0, x = 0
    y = 2, x = 1
    y = 2, x = -1

    Thank you
     
  2. jcsd
  3. mfb

    Staff: Mentor

    Guess, or make an ansatz and solve for the parameters (this will give 3 linear equations).
     
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