Find the average rate of change of the function f(x)=7/x-4 in the interval [0,2]?
回答 (3)
2017-08-16 2:50 pm
the average rate of change of the function y=f(x) in the interval [a,b] is (f(b)-f(a))/(b-a)
2017-08-16 1:21 pm
y = f(x) = 7/(x - 4)
When x = 0 :
y = 7/(0 - 4)
y = -7/4
When x = 2 :
y = 7/(2 - 4)
y = -7/2
Average rate of change
= Δy/Δx
= [(-7/2) - (-7/4)] / (2 - 0)
= -(7/4) / 2
= -7/8
When x = 0 :
y = 7/(0 - 4)
y = -7/4
When x = 2 :
y = 7/(2 - 4)
y = -7/2
Average rate of change
= Δy/Δx
= [(-7/2) - (-7/4)] / (2 - 0)
= -(7/4) / 2
= -7/8
2017-08-16 1:12 pm
average rate of change is the slope of the endpoints
收錄日期: 2021-04-18 17:42:16
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170816051139AAlJVrG