Answer
The line is in pencil in the attached image.
Work Step by Step
Recalling that a tangent line has the same slope at the circle at the point it intersects the circle, draw the tangent line through point X.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.