Chapter 10 - Section 10.2 - The Ellipse and the Hyperbola - Exercise Set - Page 618: 21

See graph

The center of the hyperbola is (0,0). The four corners of the box are (4,5), (-4,5), (4,-5) and (-4,-5). Draw a dotted box through these points. Then draw two dotted lines through the corners. The vertices of the hyperbola are (0,5) and (0,-5), so plot those points and draw a smooth curve nearing the two asymptotes without touching them.