Question

The table below shows the distance d(t) in feet that an object travels in t seconds.

What is the average rate of change of d(t) between 2 seconds and 4 seconds and what does it represent?
50 m/s; it represents the average speed of the object between 2 seconds and 4 seconds

90 m/s; it represents the average speed of the object between 2 seconds and 4 seconds

90 m/s; it represents the average distance traveled by the object between 2 seconds and 4 seconds

50 m/s; it represents the average distance traveled by the object between 2 seconds

Answer 1

t d(t)
(second) (feet)
1 15
2 60
3 135
4 240

Answer 2

@ganeshie8

Answer 3

@ranga

Answer 4

t d(t)
(second) (feet)
1 15
2 60 ************
3 135
4 240 ***************

Answer 5

average rate of change of d(t), between \(t=2\) and \(t=4\) is :

\(\large \frac{d(4) - d(2)}{4-2}\)

Answer 6

plug the values for d(4) and d(2) above

Answer 7

240-60/2

Answer 8

180/2

Answer 9

90

Answer 10

Correct !

Answer 11

average rate of change of distance is also called : average speed

Answer 12

B?

Answer 13

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