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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
 2 years ago
 2 years 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
 2 years ago
 2 years ago

This Question is Closed

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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