### Home > A2C > Chapter Ch11 > Lesson 11.2.4 > Problem 11-91

11-91.

Write the equation of the line tangent to the graph of (*x* − 7)^{2} + (*y −* 2)^{2} = 169 at the point (12, 14). (Hint: Drawing a diagram will help.) Homework Help ✎

Draw a diagram to show the situation.

Find the center of the circle. C:(7, 2)

Now find the line passing through the center and given point.

Now find the perpendicular line.