Jocelyn is training for a race by running several miles each day. She tracks her progress by recording her average speed in minutes per mile for each day since she started training

1

2

3

4

5

6

Number of Days, x

Average Speed (min/mile), y

8.2

8.1

7.5

7.8

7.4

7.5

Based on the information given, what could Jocelyn expect to have for her average speed on the 9th day?

O 8.5 minutes per mile

O 7.2 minutes per mile

6.9 minutes per mile

O 6.2 minutes per mile

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !

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