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avatar+1342 

 

thank you for your help

 Oct 16, 2019
edited by jjennylove  Oct 16, 2019
 #1
avatar+104660 
+2

a =   the major axis length / 2  =   14/2  =  7.....so....a^2  = 49

c =   the distance from the center to either foci  =  3.....so.....c^2  =  9

b^2  =  a^2  - c^2   =   49  - 9  = 40

 

So  the equation is

 

(x + 9)^2             (y - 3)^2

________   +     ________    =       1

      49                     40

 

Here's  the graph :  https://www.desmos.com/calculator/ztapwgnbgu

 

cool cool cool

 Oct 17, 2019

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