Algebra II

How do you graph the function y=x^2-4 and how is the graph a translation of f(x)=x^2

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  1. excellent graphing help can be found at

    http://rechneronline.de/function-graphs/

    where you can plot up to three functions on the same axes.

    Note that x^2-4 = (x-2)^2, so it is the graph of x^2, shifted 2 units to the right.

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    posted by Steve
  2. Zowie! Did I say that?

    x^2 - 4 is the graph of x^2 shifted down 4 units.

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    posted by Steve

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