AnswersFL-1200330-Algebra 2 Sem 1 - FlexRate of Change

Lesson 2.8: Rate of Change Answers

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21
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What is the average rate of change fromx = 10 to x = 15? -8X -4-3-2

A
-8
B
X -4
C
-3
D
-2
22
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⇒ 50

Answer:

50

23

⇒ 60

Answer:

60

24

⇒ 35

Answer:

35

25

⇒ 4

Answer:

4

26

⇒ 50

Answer:

50

27

✔ –5–1/51/55

Answers:
Mel’s rate of change is . That means that her height in the air decreases feet every second.:–5
Victor’s rate of change is . That means that his height in the air decreases feet every second.:–10/3
28

Question text not available

Answers:
Blank 1:5
Blank 2:10/3
29

✔ –10/3–3/103/1010/3

A
✔ –10/3
B
–3/10
C
3/10
D
10/3
30

Question text not available

Answer:

10/3

31

The graph shows the side view of a waterslide. Dimensions are in feet. Two points on slide:

Answers:
(0,:80
(:5
32

(, 40)

Answer:

5

33

What is the average rate of change fromx = 0 to x = 5? -80-40✔ -8-2

A
-80
B
-40
C
✔ -8
D
-2
34

What is the average rate of change fromx = 10 to x = 15? -8X -4-3-2

A
-8
B
X -4
C
-3
D
-2
35

Select the points you need to calculate the average rate of change from the beginning of the slide to when the slide has covered a horizontal distance of 15 feet.

A
(0, 80)
B
(5, 40)
C
(10, 20)
D
(15, 10)
36

The average rate of change is –8✔ –14/3–3–2.

A
–8
B
✔ –14/3
C
–3
D
–2
37

Which of the following facts did you include in your explanation?

A
On average, the slide drops 14 feet for every 3 feet of horizontal distance.
B
On average, the slide drops about 4.7 feet for every 1 foot of horizontal distance.
38

Which of the following facts did you include in your response?

A
The problems have involved going down a waterslide.
B
To model a slide, you start at the highest point and then decrease as you move down the slide.
C
The rate of change has compared a drop or decrease in vertical height to an increase in either time or horizontal distance.
39

faster than✔ slower thanthe same amount as

A
faster than
B
✔ slower than
C
the same amount as
40

Question text not available

Answer:

-3.9

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