Which two points in the graphed function have an average rate of change of 5?

a. points b and c

b. points d and f

c. points c and e

d. points a and b

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=