Step-by-step explanation:
Difference per month = 28
=> January = February - 28 = 66-28 = 38
Answer: 2 units up.
Step-by-step explanation:
If you take a look at the graph, it shows that it is 2 units up from where it initially started, therefore it is moved 2 units up. It says the SOLID graph is the translation, therefore it would be moving 2 units up.

the example on your picture uses A(n) and n = years, but is pretty much the same, in this case is t = years.