# The Fig2.7 shows a relationship between the sets P and Q. Write this relation

(i) in set-builder form (ii) in roster form

What is its domain and range?

As per the Fig 2.7

P = {5, 6, 7} and Q = {3, 4, 5}

(i) R = {(x, y) : y = x - 2; x ∈ P}

or R = {(x, y) : y = x - 2, for x = 5, 6, 7}

(ii) R = {(5, 3), (6, 4), (7, 5)}

The domain of a function is the set of all possible inputs for the function.

The range of a function is the set of all its outputs.

Domain of R = {5, 6, 7}

Range of R = {3, 4, 5}

NCERT Solutions Class 11 Maths Chapter 2 Exercise 2.2 Question 4

## The Fig2.7 shows a relationship between the sets P and Q. Write this relation (i) in set-builder form (ii) in roster form

**Summary:**

The relationship between the sets P and Q is given. We have found that domain of R = {5, 6, 7} and range of R = {3, 4, 5}.