I'm trying to understand this concept but the teacher kind of made it unclear.
The problem is
a. Sqrt(108)
b. Sqrt(1002)
For a. what the teacher did was:
a = 100 x = 8
F(x) = sqrt(x) F'(x) = 1/2sqrt(x)
Am I supposed to use the Linearlization formula to estimate this? Also why is a = 100 and x = 8?