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

Responses

2, 6, 10, 14, 18
2, 6, 10, 14, 18

f(x) = 6x − 2
f(x) = 6x − 2

an = −5 + 6(n − 1)
an = −5 + 6(n − 1)

f(x) = 6x +1

f(x) = 6x + 1