What is the equation for the tangent line of a circle with the point on the circle (-1, 2). center of circle (2, -1). i just cant remember the formula. thanks.(worried)
Last edited by mr fantastic; March 7th 2010 at 01:54 AM.
Reason: Re-posted without Caps Lock
what is the equation for the tangent line of a circle with the point on the circle (-1, 2). center of circle (2, -1). i just cant remember the formula. thanks.
slope of the radius connecting the center of the circle to the point on the circle ...
slope of the tangent line is the opposite reciprocal of ...
tangent line equation ...
Last edited by mr fantastic; March 7th 2010 at 01:55 AM.
Reason: Edited quote.