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Math Help - Circle of Radius 6

  1. #1
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    Circle of Radius 6

    If a circle of radius 6 is made to roll along the x-axis, what is an equation for the path of the center of the circle?
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by magentarita View Post
    If a circle of radius 6 is made to roll along the x-axis, what is an equation for the path of the center of the circle?
    Think about it. Does the center of the circle change its position [with respect to the y axis] as it rolls along the x axis?

    --Chris
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  3. #3
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    More importantly, does it change it distance from the x-axis?
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    ok but...

    Quote Originally Posted by Chris L T521 View Post
    Think about it. Does the center of the circle change its position [with respect to the y axis] as it rolls along the x axis?

    --Chris
    Are your saying that the equation is y = 6?
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  5. #5
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    Is the equation....

    Quote Originally Posted by HallsofIvy View Post
    More importantly, does it change its distance from the x-axis?
    Is the equation y = 6?

    The line stays the same distance from the axis, right?
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  6. #6
    A riddle wrapped in an enigma
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    Quote Originally Posted by magentarita View Post
    Is the equation y = 6?

    The line stays the same distance from the axis, right?

    Yes it is.
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  7. #7
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    I got it now...

    Quote Originally Posted by masters View Post
    Yes it is.
    I got it now. By the way, if a circle with radius 6 was rolling down the y-axis, then the line would be x = 6, right?
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  8. #8
    A riddle wrapped in an enigma
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    Quote Originally Posted by magentarita View Post
    I got it now. By the way, if a circle with radius 6 was rolling down the y-axis, then the line would be x = 6, right?
    Only if it were rolling down the right side of the y-axis. And on the other question, we assumed that the circle was rolling on top of the x-axis.
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  9. #9
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    So it makes.....

    Quote Originally Posted by masters View Post
    Only if it were rolling down the right side of the y-axis. And on the other question, we assumed that the circle was rolling on top of the x-axis.
    So, it does make a difference on which side of the x and y axis the circle is rolling.

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