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    nosnomde's Avatar
    nosnomde Posts: 4, Reputation: 1
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    #1

    Mar 6, 2010, 05:09 PM
    trying to get a basic understanding of linear functions
    Basically, I have values for f(x) in one column and "x" in the second column.
    I have tried to place them in the following formula:

    f(x)= mx + b

    example

    if f(x) = 0 and x= -3

    so I wrote the following: 0 = m(-3) + b.

    I don't have any idea if I am on the right track at all. Am I done with the problem or do I need to solve it further?

    Any help that anyone can give me is really appreciated. Thank you.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Mar 6, 2010, 06:41 PM

    Easiest way is to graph and find the slope (rise/run) and y intercept.

    You could also use the two point form of a linear equation and then find the slope intercept form and then verify that all of the points satisfy the equation.
    nosnomde's Avatar
    nosnomde Posts: 4, Reputation: 1
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    #3

    Mar 6, 2010, 08:26 PM
    Quote Originally Posted by KeepItSimpleStupid View Post
    Easiest way is to graph and find the slope (rise/run) and y intercept.

    You could also use the two point form of a linear equation and then find the slope intercept form and then verify that all of the points satisfy the equation.
    Thanks for the assist.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Mar 6, 2010, 08:51 PM
    OK.
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