Which of the following is UNLIKE the others with respect to the rate of change (common difference)?

Responses

an = −5 + 6(n − 1)
an = −5 + 6(n − 1)

2, 8, 12, 20, 26
2, 8, 12, 20, 26

f(x) = 6x +1
f(x) = 6x +1

f(x) = 6x − 2

The following sequence is unlike the others with respect to the rate of change (common difference):

f(x) = 6x - 2