Answer:
d. 0
Step-by-step explanation:
The table can be interpreted as:

Required
Find 

Substitute: 

Using a calculator

Hence:

Answer:
50 i think
Step-by-step explanation:
Answer:
(b, a)
Step-by-step explanation:
Example if D was (3, 2) and reflects across y = x, D' will be (2, 3)