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Lilmike234

  • one year ago

What is the value of a for the following circle in general form (x+4)^2+(y-2)^2=2 x^2+y^2+ax+by+c=0

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  1. triciaal
    • one year ago
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    |dw:1439078561899:dw|

  2. triciaal
    • one year ago
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    |dw:1439078636367:dw|

  3. triciaal
    • one year ago
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    |dw:1439078692736:dw|

  4. triciaal
    • one year ago
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    can you continue then compare the 2 equations to match and solve?

  5. triciaal
    • one year ago
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    you would get the very same answer if you expanded the given one first then do the match up

  6. lilmike234
    • one year ago
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    I tried this method and came up with a completely different answer than I was suppose to get

  7. triciaal
    • one year ago
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    |dw:1439078998581:dw|

  8. triciaal
    • one year ago
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    is this the correct solution ?

  9. lilmike234
    • one year ago
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    So the value of a is 8?

  10. triciaal
    • one year ago
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    that what I got with the 2nd option

  11. triciaal
    • one year ago
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    to continue the 1st option |dw:1439079924005:dw|

  12. lilmike234
    • one year ago
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    Thank you

  13. triciaal
    • one year ago
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    so like I said same answer

  14. triciaal
    • one year ago
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    |dw:1439080067771:dw|

  15. triciaal
    • one year ago
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    |dw:1439080234387:dw|

  16. triciaal
    • one year ago
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    you are welcome

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