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Math Help - gradients

  1. #1
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    gradients

    hello, this is my question:

    A(3,-1) and B(-3,3) are ends of a chord AB of a circle.

    Show by using gradients that the point (4,7) could be the centre of the circle.

    im am a little unsure how i would work this out. i know that the midpoint of AB =(0,1) but im not too sure if that is relevent to my question.
    Could someone please explain what i have to do on this question in detail so i know how to do this in similar questions?

    thanks!
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  2. #2
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    Re: gradients

    Quote Originally Posted by andyboy179 View Post
    hello, this is my question:

    A(3,-1) and B(-3,3) are ends of a chord AB of a circle.

    Show by using gradients that the point (4,7) could be the centre of the circle.

    im am a little unsure how i would work this out. i know that the midpoint of AB =(0,1) but im not too sure if that is relevent to my question.
    Could someone please explain what i have to do on this question in detail so i know how to do this in similar questions?

    thanks!
    show that chord AB is perpendicular to the segment connecting the midpoint of AB and (4,7)
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  3. #3
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    Re: gradients

    sorry, but i have just completed the question, sorry for wasting your time.
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  4. #4
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    Re: gradients

    sorry, but i have just completed the question, sorry for wasting your time.
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