-18 is the answer bebe :)
Answer:
(1, 3)
Step-by-step explanation:
The center of a hyperbola can be found by looking at the midpoint between the two vertices.
Here, the two vertices are (1, 8) and (1, -2). We use the Midpoint Formula to figure out the vertex:
Midpoint is: 
Thus, the answer is (1, 3).
Hope this helps!
Answer:

Step-by-step explanation:
We want to simplify:

This is the same as:

Cancel out the common factors to get;

This is the same as

The number -38 belongs to Integers