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Homework Help: X/y intercept for translations of f(x)

  1. Nov 11, 2004 #1
    Hello

    please can you guys help me on this :

    f(x) = x^2 + 2x + 2

    af(x)=
    f(ax)=
    -f(x)=
    f(-x)=


    In each of the cases above, I wanted to know given a function, does the graph of it change in terms of the x intercept , y intercept and vertex ?

    Does it depend on the particular function or not ?


    Thanks in advance.

    roger
     
  2. jcsd
  3. Nov 11, 2004 #2
    Why don't you first change that equation into transformation/vertex form
    [tex]
    f(x) = (x-h)^2 + k
    [/tex]

    The make up numbers for a and see how it changes.
     
  4. Nov 12, 2004 #3
    af(x) represent the graph of f(x) is enlarged a times of the oringinal to the y-axis.
     
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