My math class has just started getting into calculus and I have a few questions that I'd like to ask. Our school uses a program called TLM that spits out some random math problems from a huge database, and here are a couple of questions that I'm having trouble with.

Given the function

evaluate

For this question should I just pop in for x?

EDIT:

The question then asks me what is and when x changes from 1.6 to 2.2

For delta y I just subbed in the numbers and got 15

For finding the dy/dx I'm drawing a complete blank. I feel like it should be easy but I can't figure out what to do.