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Math Help - word problem with circle-help!

  1. #1
    Junior Member LexiRae's Avatar
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    word problem with circle-help!

    so its this picture of a rectangle inscribed in a circle. the circle has a radius of 2. the vertexes of the circle are present in every quadrant, but you cant tell exactly whgat point they represent. point Q (x,y) is the vertex of the rectangle in Quadrant I and is on the circle. the equation of the circle is : x^2 + y^2 = 4
    a.) express the area of the rectangle as a function of x.
    b.) give the domain of the area
    c.) epxress the perimeter as a function of x.
    d.) give the domain of Q (x)
    PLEASE HELP IM SO LOST. and friday afternoon is my scheduled math homework day. (dont ask im psycho) please this is bother ing me like crazyy
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  2. #2
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by LexiRae View Post
    so its this picture of a rectangle inscribed in a circle. the circle has a radius of 2. the vertexes of the circle are present in every quadrant, but you cant tell exactly whgat point they represent. point Q (x,y) is the vertex of the rectangle in Quadrant I and is on the circle. the equation of the circle is : x^2 + y^2 = 4
    a.) express the area of the rectangle as a function of x.
    b.) give the domain of the area
    c.) epxress the perimeter as a function of x.
    d.) give the domain of Q (x)
    PLEASE HELP IM SO LOST. and friday afternoon is my scheduled math homework day. (dont ask im psycho) please this is bother ing me like crazyy
    Two things..please dont double post...I nudged you in the right deriection in your other post...and next time please consider more carefully where your thread belongs...this would belong more in the Pre-Calc or Algebra section...any more questions just post it in your other thread. Good luck!!
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