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Find the equation of the circle centered at (1,-4) with radius 3.

Write your equation in the form "(x - h)^2 + (y - k)^2 = r^2".

 May 21, 2021
 #1
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The equation of the circle is (x - 1)^2 + (y + 4)^2 = 3.

 May 21, 2021
 #2
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hey sorry thats wrong

Guest May 22, 2021
 #3
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This is an extremely easy question.

The centre is (h,k) and the radius is r.

Do the substitution yourself.

 May 22, 2021
 #4
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thank you, i just started this unit...

szastan  May 22, 2021
 #5
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So what?

You want people here to do your homework for you instead of you looking at your notes?

 

 

You still haven't bothered to tell us what the answer is.

Melody  May 23, 2021
edited by Melody  May 23, 2021
 #6
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sorry didnt mean to offend anyone i was just wondering if i could get a explanation instead of a rude statement not all of us are geniuses i thought this forum was supposed to help people

szastan  May 29, 2021
 #7
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Easy peezy  :  when   given  the  center  and  the  radius

 

Change  the  signs  on the  center  coordinates  and  square  the  radiius

 

This  leads  to

 

(x  - 1)^2   +  (  y + 4)^2    =  9

 

 

cool cool cool

 May 29, 2021
 #8
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thank you :)

szastan  May 29, 2021

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