### Home > AC > Chapter 16 > Lesson 16.9.2.1 > 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.