Let R be the relation in the set N given by R = {(a, b) : a = b – 2, b > 6} Choose
the correct answer (A) (2, 4) ∈ R
(B) (3, 8) ∈ R
(C) (6, 8) ∈ R
(D) (8, 7) ∈ R
1 3  Types of Functions
The notion of a function along with some special functions like identity function, constant
function, polynomial function, rational function, modulus function, signum function etc