Math

Find 3 coordinates on the circle when the center of the circle is (4, -3) and the radius is 5

Help me!!! Thank you :)

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asked by Carrie
  1. (x-4)^2 + (y+3)^2 = 25
    If x = 4, y = -3 +/- 5
    so
    (4,-8) or (4,2)
    now tell me two more where y = -3

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    posted by Damon
  2. Im still confused about how you got from x=4 to (4, -8)?

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    posted by Carrie
  3. First - graph it !!!

    If x = 4
    (4-4)^2 + (y+3)^2 = 25
    0 + (y+3)^2 = 25
    y+3 = 5 or -5
    y = 2 or y = -8

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    posted by Damon

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