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anonymous

  • one year ago

HELP PLEASE!!! A circle with the equation (x + 3)2 + (y - 2)2 = 25 is reflected over the line x = 2. What is the equation of the image?

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  1. MrNood
    • one year ago
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    from the equation you should be able to tell me what is th ex value of the centre of the original circle?

  2. welshfella
    • one year ago
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    (x - a)^2 + (y - b)^2 = r^2 is the general form of a circle where (a,b) is the centre and r is radius compare this with your equation and you will get the center and radius of your circle

  3. anonymous
    • one year ago
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    there is no diagram or picture. that is all the info it gives, other than the answer choices

  4. anonymous
    • one year ago
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    that makes no sense to me

  5. MrNood
    • one year ago
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    As I said - you can tell this JUST FROM the equation what is the x value of the centre of the original circle?

  6. anonymous
    • one year ago
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    A circle with the equation (x + 3)2 + (y - 2)2 = 25 is reflected over the line x = 2. What is the equation of the image? (x - 3)2 + (y + 2)2 = 25 (x - 7)2 + (y + 2)2 = 25 (x - 7)2 + (y - 2)2 = 25 (x - 3)2 + (y - 2)2 = 25

  7. anonymous
    • one year ago
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    Idk

  8. welshfella
    • one year ago
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    compare (x - a) to ( x + 3) what is the value of a which will make them equal?

  9. MrNood
    • one year ago
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    There is no point in posting th eanswers you need ot look at the equation and use the general equationgiven above to tell me what is th ex value of the original circle. This is th efirst step to th enaswer - so oyu need to do this first

  10. anonymous
    • one year ago
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    im not following

  11. welshfella
    • one year ago
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    |dw:1435089726958:dw|

  12. MrNood
    • one year ago
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    to get to this question you MUST have studied the general equation for a circle as given by @welshfella so tell us wah is the centre point of the original circle

  13. anonymous
    • one year ago
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    Okay, i have no clue whats going on. put it in idiot form

  14. welshfella
    • one year ago
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    I'll leave it to you Mr Nood - I'm really tired

  15. MrNood
    • one year ago
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    OK - so you cannot answer this question Go back and study th egeneral equation of a circle , and come back to thisd question when oyu have th ebackground skills to tackle it

  16. MrNood
    • one year ago
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    @welshfella I'm tired of people who won't make any attempt to answer their own question

  17. anonymous
    • one year ago
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    I can't study it. Its an exam. And I don't fluttering understand Geometry

  18. anonymous
    • one year ago
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    * fu ck ing

  19. MrNood
    • one year ago
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    If it's an exam then you either MUST have some background study about circels, OR you are going to fail it

  20. anonymous
    • one year ago
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    All i know how to do is radiuis and diameter of circles, not this pellet

  21. MrNood
    • one year ago
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    In that case you are not ready to take this exam

  22. anonymous
    • one year ago
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    well that is too late

  23. Owlcoffee
    • one year ago
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    find the distance feom the center of the circle to the line represented by x=2, then that unidimensional distance should represent the center reflected on the line, and the radius will be the same, so that's pretty much it.

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