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OpenStudy (hannahdeanm):
What is the general form of the equation of a circle with its center at (-2, 1) and passing through (-4, 1)?
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OpenStudy (tkhunny):
All you need is the radius.
OpenStudy (hannahdeanm):
how do i get the radius?
OpenStudy (tkhunny):
So, you're NOT going to find the radius?
OpenStudy (hannahdeanm):
i dont know how to get the radius. thats why im asking
OpenStudy (tkhunny):
Bad answer. You MUST have SOME idea. If you have the center and a point on the circle, you must be able to find the radius. You Will be required to do this on an exam. Two points. How far apart are they?
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OpenStudy (hannahdeanm):
2
OpenStudy (hannahdeanm):
i use midpoint formula?
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