Relations and Functions Answers

1. (a) {2, 4, 6}

(b) {5, 9, 13}

2. (a) {(0,-3),(1,-2),(-1,-4),(-2,-5),(3,0),(n,n − 3),(m +3, m)}

(b) {(0,6),(1,8),(-1,4),(-2,2),(-3,0),(n,2n +6),(, m)}

(c){(0,3),(1,4),(-1,4),(-2,7),(3,0),(n,n2 +3),(, m)}

3. a and d

4. (a) (i)

(ii) 

(b) y = x2

5. (a) {-1, 0, 1} (b) {-1, 0, 1} (c) No

(d) {(-1, 0), (0, -1), (0, 1), (1, 0)}

6. (a) y = x2

(b) y = x − 1

(c) y = 2x + 1

7. (a) 8, 10, 12, 86, 2n + 2, 20, 

(b)