### Home > CCG > Chapter 12 > Lesson 12.2.3 > Problem 12-85

12-85.

If and

*, find all possible coordinates of the vertex*

*. Justify your answer.*

There are two possible locations for vertex .

Use the eTool below to visualize the problem.

Click the link at right for the full version of the eTool: *CCG 12-85 HW eTool* (Desmos)