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    starfirefly's Avatar
    starfirefly Posts: 397, Reputation: 33
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    #1

    Feb 25, 2010, 02:24 PM
    domain and range
    state the domain and range of the relation if the graph is continuous ans is a circle whose centre is located at (-1, 12) and has a radius of 5 units?



    (I don't need the answer I have that I just don't understand how to get the answer, please help)

    answer is: D=-6<_ x <_4
    R= 7<_ y <_ 17

    (<_ the line is under the<)
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Feb 26, 2010, 11:55 AM

    A sketch would be of great help.

    The centre is (-1, 12) and the radius is 5.

    So, from the centre of the circle, you'll have the leftmost side at coordinates (-6, 12) and the rightmost coordinate (4, 12) right? That gives a domain of -6<_ x <_ 4.

    You use the same logic for the range, but along the vertical.
    starfirefly's Avatar
    starfirefly Posts: 397, Reputation: 33
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    #3

    Feb 26, 2010, 01:17 PM

    Thanks you we had no sketches given for these that kind of where I got lost
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