Given a Tangent Line & Circle Find the Point of Tangency

In this lesson I start by setting up the example with you.  Then at 15:08 I show you how to find the Point of Tangency when given the equation of the tangent line and a circle.  In the first solution I work through the slope formula using the fact that the tangent line and radius are perpendicular.  The second method starting at 26:00 I just use straight substitution to solve the system of equations between the tangent line and the circle.

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• #education
• #tangent_lines_to_circles
• #point
• #system_of_linear_equations
• #substitution_method