.Will depend on when the student works the problem.
Section 3.3, Extension of Exploration 1 (page 284)
Answer
It is the graph of .
Section 3.4, Extension of Exploration 2 (page 295)
Answers
The domain of 
and the domain of y2 is 
The graph of y2 is identical with the portion of the graph of y2 for x> 2.