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Mathematics 19 Online
OpenStudy (anonymous):

what is the maximum y value for (x-17)^2+(y+8)^2=9^2?

OpenStudy (callisto):

From the equation, we can know that the centre of the circle is at (17, -8) and the radius of the circle is 9 units. |dw:1338609391480:dw| The max. y value would be the vertical distance from the centre to the circumference in upward direction. So, it's y-coordinate of the centre + radius, that is -8 + 9 = ... ?

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