Find the average rate of change for f(x) = 7x + 12 on [2,8]_英语解答

Find the average rate of change for f(x) = 7x + 12 on [2,8]

人气：476 ℃　时间：2020-02-03 18:05:12

解答

f(x) = 7x + 12 on [2,8]
=[f(8)-f(2)]/(8-2)
=(56+12-14-12)/6
=7