Algebra 2 questions!? Averge rate of change/ please help and explain how to do these?

2018-03-08 3:45 am
1.
Game Attendance (number of people)
1 654
2 680
3 702
4 732
5 755

The attendance for several baseball games is shown in the table.

Which answer describes the average rate of change from game 2 to game 5?



The attendance increased by an average of 25 people per game from game 2 to game 5.

The attendance increased by an average of 19 people per game from game 2 to game 5.

The attendance increased by an average of 75 people per game from game 2 to game 5.

The attendance increased by an average of 101 people per game from game 2 to game 5.

2. The second question has a picture

回答 (2)

2018-03-08 4:48 am
✔ 最佳答案
.
( 1 )
[a, b] = [2, 5] games
[f(a), f(b) ] = [680, 755] people

Average Rate of Change
= ( f(b) - f(a) ) / ( b - a )
= ( 755 - 680 ) / ( 5 - 2 )
= 25
= 25 people/game
━━━━━━━━━

ANSWER: first choice
The attendance increased by an average of 25 people per game from game 2 to game 5.

( 2 )
f(x) = - ³√x

f(8) = - ³√8 = -2
f(64) = - ³√64 = -4

Average Rate of Change
= ( f(64) - f(8) ) / ( 64 - 8 )
= ( -4 - -2 ) / ( 56 )
= -1/28
━━━━

ANSWER: third choice
-1/28
2018-03-08 4:37 am
Rule
the average rate of change = (f(b)-f(a))/(b-a)


收錄日期: 2021-04-24 00:58:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180307194540AAylvlu

檢視 Wayback Machine 備份