anonymous
  • anonymous
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?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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MrNood
  • MrNood
from the equation you should be able to tell me what is th ex value of the centre of the original circle?
welshfella
  • welshfella
(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
anonymous
  • anonymous
there is no diagram or picture. that is all the info it gives, other than the answer choices

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anonymous
  • anonymous
that makes no sense to me
MrNood
  • MrNood
As I said - you can tell this JUST FROM the equation what is the x value of the centre of the original circle?
anonymous
  • anonymous
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
anonymous
  • anonymous
Idk
welshfella
  • welshfella
compare (x - a) to ( x + 3) what is the value of a which will make them equal?
MrNood
  • MrNood
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
anonymous
  • anonymous
im not following
welshfella
  • welshfella
|dw:1435089726958:dw|
MrNood
  • MrNood
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
anonymous
  • anonymous
Okay, i have no clue whats going on. put it in idiot form
welshfella
  • welshfella
I'll leave it to you Mr Nood - I'm really tired
MrNood
  • MrNood
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
MrNood
  • MrNood
@welshfella I'm tired of people who won't make any attempt to answer their own question
anonymous
  • anonymous
I can't study it. Its an exam. And I don't fluttering understand Geometry
anonymous
  • anonymous
* fu ck ing
MrNood
  • MrNood
If it's an exam then you either MUST have some background study about circels, OR you are going to fail it
anonymous
  • anonymous
All i know how to do is radiuis and diameter of circles, not this pellet
MrNood
  • MrNood
In that case you are not ready to take this exam
anonymous
  • anonymous
well that is too late
Owlcoffee
  • Owlcoffee
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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