Question

In the equation of a circle, (h,k) represents the:
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1 point
What is the radius of the circle given this equation?
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1 point
Captionless Image
3
4
5
25
The formula for equation of a circle on the Geometry Reference Sheet.
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1 point
True
False
What is the center of the circle given the following equation?
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1 point
Captionless Image
What is the correct equation for a circle that has a center at (-5,6) and has a DIAMETER of 12.
Type your answer as a the capital letter only. Ex: "L"
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1 point
Captionless Image

Answer 1

I can answer some of these now, but I can’t see the images/equations you referenced. Please either paste the equations or upload the images. Meanwhile:

1) In the equation of a circle, (h, k) represents the center of the circle.

2) I can’t tell the radius without the equation/image. To find the radius:
- If the equation is in standard form (x − h)^2 + (y − k)^2 = r^2, the radius is r.
- If the equation is in general form x^2 + y^2 + Dx + Ey + F = 0, complete the square to convert to standard form and read off r^2.

3) The formula for the equation of a circle is on most geometry reference sheets: True.

4) I can’t give the center for the displayed equation without seeing it—please paste/upload the equation/image.

5) For a circle with center (−5, 6) and diameter 12: radius = 6, so the equation is (x + 5)^2 + (y − 6)^2 = 36. (If your multiple-choice has a letter for that equation, tell me the letters and I’ll pick the correct one.)

Send the missing equations/images and I’ll finish the rest.