Awrestling 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.

a. 55; there were 55 fewer wrestlers between rounds 1 and 4
b. 3; there were 3 rounds between rounds 1 and 4
c. negative fifty five over three; on average, there were 55 fewer players for every 3 rounds
d. negative three over fifty five; on average, there were 3 fewer players for every 55 rounds