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Math Help - Determining the equation

  1. #1
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    Determining the equation

    I've been trying to do this question for the past like 30 minutes and I don't get it. I can do 3a, but not the others, can anyone help me with 3b,c or d?

    Determining the equation-ccnhr.jpg
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  2. #2
    MHF Contributor Siron's Avatar
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    Re: Determining the equation

    How did you come to the (right) answer for 3a? If you know how to do 3a then the others are similar.
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  3. #3
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    Re: Determining the equation

    I just looked at the origin of the normal graph, 0,0 and saw the different in the new graph, the origin of the transformed graph was (-3,-4) So I got the equation y=(X+3)^3 -4, don't know how to do the others though :/
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  4. #4
    MHF Contributor Siron's Avatar
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    Re: Determining the equation

    First one is correct! Now do the same for the second one with the tranformations, take the graph of y=x^4 and look which transformations have been achieved.
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  5. #5
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    Re: Determining the equation

    A move up or down is a change in "y"- that is, it will be added or subtracted after applying function f to get the initial value of y. But a move left or right will be a change in x. Think of it as f(x- a) and choose a so that, in the second one, for example, f(1- a)= f(0).
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