Using derivatives, it is found that the best estimate of f '(2) based on this table of values is of 10.
The rate of change <u>from x = 0 to x = 2</u> is given by:

From <u>x = 2 to x = 4</u>, it is given by:

The average of these rates is:

Hence, the best estimate of f '(2) based on this table of values is of 10.
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Twenty percent of $35 is 0.20($35) = $7. The discount is $7.
42 (1- 25/100) = 63/2 = 31.5 dollars
answer is $31.50
hope it helps
Answer: 16 + 200 = 216
Step-by-step explanation: