### Home > PC > Chapter 9 > Lesson 9.2.1 > Problem 9-73

9-73.

The radius is perpendicular to the tangent line. Find the slope of the radius to help find the slope of the tangent line.

Use the given point and *m*_{tangent} to find the equation.

9-73.

The radius is perpendicular to the tangent line. Find the slope of the radius to help find the slope of the tangent line.

Use the given point and *m*_{tangent} to find the equation.