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Sunshine447
Group Title
A circle is shown on the coordinate plane below.
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0802_07/image0034e849df3.gif
What is the equation of this circle?
x2 + (y + 1)2 = 4
x2 + (y – 1)2 = 2
x2 + (y + 1)2 = 2
x2 + (y – 1)2 = 4
 one year ago
 one year ago
Sunshine447 Group Title
A circle is shown on the coordinate plane below. http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0802_07/image0034e849df3.gif What is the equation of this circle? x2 + (y + 1)2 = 4 x2 + (y – 1)2 = 2 x2 + (y + 1)2 = 2 x2 + (y – 1)2 = 4
 one year ago
 one year ago

This Question is Closed

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
@ParthKohli @Hero
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
@ganeshie8
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
I think it's the first one
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
is it the first choice? I'm just double checking
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
check again :)
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
why is it the last one?
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
wouldnt it be 2^2=4 so its the first one? Dont you have to add not subtract?
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
general form of equation is : (xh)^2 + (yk)^2 = r^2 can you tell whats the center (h, k) and radus r, from the figure ?
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
yeah radius you got it correct !!
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
yes, the center is 0,1 and the radius is 2
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
wait.... so which one is it?
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
1st or last?
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
center = (h, k) = (0, 1) (xh)^2 + (yk)^2 = r^2
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
plug in h and k values
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
(x0)^2 + (y1)^2 = 2^2 x^2 + (y1)^2 = 4
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.1
so the first one?
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
does that help/make sense ?
 one year ago
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