A tangent line to a circle is a line that intersects the circle at exactly one point. The tangent line is perpendicular to the radius of the circle at this point of contact. Write the equation of a line tangent to the circle whose equation is x^2 + y^2 = 25. Can anyone help me with this? I know you have to use the slope formula some how but I'm not sure how. If you can help me, please show the steps. Thank you so much...
2006-09-27
13:02:45
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5 answers
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