1). Letfbe the function defined as follows.

y=f(x) =5x+6

a). Find the differential of f.

dy=5/(25x+6)*dx

I found this answer.

b). Use your result from part (a) to find the approximate change inyifxchanges from 4 to 4.1.

C). Find the actual change inyifxchanges from 4 to 4.1 and compare your result with that obtained in part (b). (Round your answer to three decimal places.)

2). Use differentials to approximate the quantity. (Give your answer correct to 4 decimal places.)

Sqrt(63.7)

3). Use differentials to approximate the quantity.

256.6 ( this is under a fourth root radical).