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Math Help - So I kind of forgot how to do this over the summer!

  1. #1
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    So I kind of forgot how to do this over the summer!

    Ok! I should know how to do this, but:


    1. Complete the table and write a rule relating x and y (an eqaution)

    X 3 ,-1, 0, 2, -5, -2, 1
    Y 0,,,,,,,,,,-1 ,,,,,,,,,,-2


    Sorry I do not know how to make tables on here! The blank spaces is where you complete the table. I tried making an equation.
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  2. #2
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    Quote Originally Posted by peachgal View Post
    Ok! I should know how to do this, but:


    1. Complete the table and write a rule relating x and y (an eqaution)

    X 3 ,-1, 0, 2, -5, -2, 1
    Y 0,,,,,,,,,,-1 ,,,,,,,,,,-2


    Sorry I do not know how to make tables on here! The blank spaces is where you complete the table. I tried making an equation.
    Can I guess that this is supposed to be a linear function?

    My first comment is that you ought to arrange the x's in either ascending or descending order:
    x -2, -1, 0, 1, 2, 3
    y,,,,,,,,,,,,,,-2, -1, 0

    Now the pattern looks a lot clearer:
    d = 0 - 3 = -3
    d = -1 - 2 = -3
    d = -2 - 1 = -3

    So each of these has a common value for d = y - x, that is d = -3.

    So let
    y - x = -3

    Then
    y = x - 3

    That looks like it fits what you've got in your table.

    -Dan
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