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steve816

  • one year ago

Find the center (h, k) and radius r of each circle.

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  1. steve816
    • one year ago
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    \[2(x-3)^2+2y^2=8\]

  2. jim_thompson5910
    • one year ago
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    try to get the equation into the form \[\Large (x-h)^2 + (y-k)^2 = r^2\]

  3. steve816
    • one year ago
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    I divided the entire equation by 2

  4. jim_thompson5910
    • one year ago
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    great start

  5. steve816
    • one year ago
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    I got \[(x-3)^2+y^2=4\]

  6. jim_thompson5910
    • one year ago
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    then what?

  7. steve816
    • one year ago
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    Hmm, is this the standard form?

  8. jim_thompson5910
    • one year ago
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    yeah more or less. Do you see what the center is? what the radius is?

  9. jackthegreatest
    • one year ago
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    oo could i give the answer?

  10. jim_thompson5910
    • one year ago
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    let steve try it out

  11. jackthegreatest
    • one year ago
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    ok could i give a hint?

  12. steve816
    • one year ago
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    Oooh I think I figured it out, the center is (3, 0) and the radius is 2.

  13. jim_thompson5910
    • one year ago
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    correct

  14. steve816
    • one year ago
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    Thank you, but now I need to find the x and y-intercepts. How do I do that?

  15. jim_thompson5910
    • one year ago
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    @jackthegreatest yes you can give hints as that helps better than just giving the answer

  16. jackthegreatest
    • one year ago
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    : )

  17. jackthegreatest
    • one year ago
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    lol k

  18. jim_thompson5910
    • one year ago
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    to find the y intercept(s), you plug in x = 0 and solve for y to find the x intercept(s), you plug in y = 0 and solve for x

  19. steve816
    • one year ago
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    Alright, thanks :)

  20. jim_thompson5910
    • one year ago
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    no problem

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