### Home > PC > Chapter 8 > Lesson 8.2.1 > Problem 8-73

8-73.

Two tangent lines are drawn on the circle , one at the point

Find the equations of the tangents by using the point-slope form.

The slopes of the tangents are the reciprocals of the slopes of the corresponding radii multiplied by −1.

Set the two equations equal to each other and solve for the coordinates of the intersection.

(1,7)

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