Answer:
a) {(3,3),(3,4),(4,5),(4,6)}
Step-by-step explanation:
Given
(a) to (d)
Required
Which is not a function
A relation is represented as:
![\{(x_1,y_1),(x_1,y_1),(x_2,y_2),...............(x_0,y_0)\}](https://tex.z-dn.net/?f=%5C%7B%28x_1%2Cy_1%29%2C%28x_1%2Cy_1%29%2C%28x_2%2Cy_2%29%2C...............%28x_0%2Cy_0%29%5C%7D)
For the relation t be a relation, then:
where ![i \ne j](https://tex.z-dn.net/?f=i%20%5Cne%20j)
This means that none of the x values must be related.
The first relation has 3 repeated as its value of . Hence, (a) is a relation