Which point is a vertex of the hyperbola?
14-
12-
10-
8-
6
(1.11)
O (1-15)
O (1,-2)
4(1,3)
-14-12-10-8-6-4-22 2 4 6 8 10 12 14 16
(1-2)
8-(1-7)
-10+
-12-
(1,3)
(1.11)
14-
(1,-15)
-16-
-18