A wrestling match has eliminations each round. The table below shows the number of wrestlers in each of the first 4 rounds of the tournament:
Round (x) 1 2 3 4
Wrestlers f(x) 64 32 18 9
Compute the average rate of change of f(x) from x = 1 to x = 4 and identify the meaning of that rate.
55; there were 55 fewer wrestlers between rounds 1 and 4
3; there were 3 rounds between rounds 1 and 4
negative fifty five over three; on average, there were 55 fewer players for every 3 rounds
negative three over fifty five; on average, there were 3 fewer players for every 55 rounds

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\[ROC = \frac{ f(b)-f(a) }{ b-a }\]
from 1 to 4 that's
\[ROC = \frac{ f(4)-f(1) }{ 4-1 }\]

is it B

did you calculate a rate of change?

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