From the set of ordered pairs {(2,3),(4,7),(6,11)}, determine whether the set can be described by y = ax + b and, if so, find a and b.

Yes, the set is linear with a = 3 and b = -3.

Yes, the set is linear with a = 2 and b = 1.

Yes, the set is linear with a = 2 and b = -1.

No, the set cannot be described by y = ax + b because the rate of change is not constant.