The coefficient is 4 because it is placed before x.
You can start by doing 3×3 which is 9 than get the 9 and multiply it by 11 which would be 99
The answer is B) it shifts up and to the right
Step-by-step explanation:


Here, the Taylor approximation for a square root was applied, and O(x) stands for all negligible terms of Taylor's sum with respect to variable x.
So, 
b. For an increase of 2%, that is:


2x² - 3xy
2(1)² - 3(1)(2)
2(1) - 3(2)
2 - 6
-4