Geometry.5.D.19 - Equations for Tangent Lines to Circles – Exit Ticket

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Consider the circle (x + 2)2 + (y− 3)2 = 9. There are two lines tangent to this circle having a slope of −1. Find the coordinates of the two points of tangency.

Consider the circle (x + 2)2 + (y− 3)2 = 9. There are two lines tangent to this circle having a slope of −1. Find the equations of the two tangent lines.

From EngageNY.org of the New York State Education Department. Grade Geometry Mathematics Module 5, Topic D, Lesson 19. Internet. Available from https://www.engageny.org/resource/geometry-module-...; accessed 14/Apr/2016.