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Math Help - Piecewise Functions

  1. #1
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    Piecewise Functions

    My math homework tells me to come up with 4 points to this piecewise function

    f(x)= {-x, if x<1
    {x+1, if x >or= 1

    Could someone tell me how I coudl come up with these 4 points. Thanks!!!!!!
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  2. #2
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    Quote Originally Posted by Mathfailure View Post
    My math homework tells me to come up with 4 points to this piecewise function

    f(x)= {-x, if x<1
    {x+1, if x >or= 1

    Could someone tell me how I coudl come up with these 4 points. Thanks!!!!!!
    Hello,

    if you want to calculate the coordinates of points choose a x-value and plug it into the equation.
    For instance:
    x = -2 ==> A(-2, 2) You have to use the first term because the x-value is smaller than 1
    x = 0 ==> B(0, 0) You have to use the first term because the x-value is smaller than 1
    x = 1 ==> C(1, 2) You have to use the second term because the x-value equals 1
    x = 3 ==> D(3, 4) You have to use the second term because the x-value is greater than 1

    I've attached an image of the graph.

    EB
    Attached Thumbnails Attached Thumbnails Piecewise Functions-stck_weise_geraden.gif  
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