Conic Sections: Ellipse with Foci | Desmos

Expression 7: "d" equals left brace, "a" less than "b" : StartRoot, left parenthesis, "b" squared minus "a" squared , right parenthesis , EndRoot , 0 , right brace equals 0

equals

0

7

Hidden Label: left parenthesis, "c" plus "k" , "d" plus "h" , right parenthesis equals left parenthesis, 5.1 1 4 8 7 0 0 9 3 6 5 , 0 , right parenthesis Has graph. To audio trace, press ALT+T.

Label

equals

left parenthesis, 5.1 1 4 8 7 0 0 9 , 0 , right parenthesis

8

Hidden Label: left parenthesis, negative "c" plus "k" , negative "d" plus "h" , right parenthesis equals left parenthesis, negative 4.3 1 4 8 7 0 0 9 3 6 5 , 0 , right parenthesis Has graph. To audio trace, press ALT+T.

Label

equals

left parenthesis, negative 4.3 1 4 8 7 0 0 9 , 0 , right parenthesis

9

Expression 10: "y" equals "h" left brace, negative "a" plus "k" less than "x" less than "a" plus "k" , right brace Has graph. To audio trace, press ALT+T.

10

Expression 11: "x" equals "k" left brace, negative "b" plus "h" less than "y" less than "b" plus "h" , right brace Has graph. To audio trace, press ALT+T.

11

Hidden Label: left parenthesis, "k" , "h" , right parenthesis equals left parenthesis, 0.4 , 0 , right parenthesis Has graph. To audio trace, press ALT+T.

Label

equals

left parenthesis, 0.4 , 0 , right parenthesis

12

Expression 13:

13

14

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