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Math Help - Stuck on a math problem!!!!

  1. #1
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    Unhappy Stuck on a math problem!!!!

    Graph the quadratic equation after completing the given table of values. y = x^2 + 2


    x


    y


    –2



    –1



    0



    1



    2
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by milleniem_mom View Post
    Graph the quadratic equation after completing the given table of values. y = x^2 + 2


    x


    y


    –2



    –1



    0



    1



    2
    What exactly is your question?

    Pick out a series of x values and find the y values for them, respectively. Then plot the points and draw a smooth curve between them.

    Tell me at what point in the above (brief) explanation you are getting lost.

    -Dan
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  3. #3
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    Lost on the table portion......

    I usually get stuck on completing the table portion of the math problem. For some reason I can never pount it into my head. The graph part is easy for me but when it comes to the table i'm lost. Is there any easy way that I can look at this.

    Thanks,

    milleniem_mom
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  4. #4
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by milleniem_mom View Post
    I usually get stuck on completing the table portion of the math problem. For some reason I can never pount it into my head. The graph part is easy for me but when it comes to the table i'm lost. Is there any easy way that I can look at this.

    Thanks,

    milleniem_mom
    Simply by practice and going from one step to the next.
    y = x^2 + 2
    Start with x = 2.
    y = (2)^2 + 2 = 4 + 2 = 6

    x = 1 \implies y = (1)^2 + 2 = 1 + 2 = 3
    x = 0 \implies y = (0)^2 + 2 = 0 + 2 = 2
    x = -1 \implies y = (-1)^2 + 2 = 1 + 2 = 3
    x = -2 \implies y = (-2)^2 + 2 = 4 + 2 = 6

    -Dan
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