SOLUTION: Find the equation of the line tangent to a circle x2 + y2 = 13 at (3,-2).

Question 856009: Find the equation of the line tangent to a circle x2 + y2 = 13 at (3,-2).
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
First, look for the line containing points (0,0) and (3,-2). Assuming point (3,-2 )is also on the circle, find the line perpendicular to the just found line and containing the point (3,-2).

Something worth checking: Is (3,-2) on the circle ?

, YES.

Line (0,0) to (3,-2) is ;
A line perpendicular is . THIS line must contain(3,-2).

Line tangent to circle at (3,-2) is .

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