=

1. Use the forward-difference formulas and backward-difference formulas to determine each missing

entry in the following tables.

a. x f(x)

f'(x)

0.5

0.4794

0.6 0.5646

0.7 0.6442

0.0

0.2

0.4

f(x) f'(x)

0.00000

0.74140

1.3718