Which of the following relations are functions from A to B write their domain and range if it is not a function give reason ?`f:A rarr B` is defined by `f={(1,-2),(3,7),(5,6),(9,0)},A={1,3,5,9},B={-2,7,-6,0,1,2}`

Explanation

To determine whether the relation \( f: A \to B \) defined by \( f = \{(1, -2), (3, 7), (5, 6), (9, 0)\} \) is a function, we need to check if every element in set \( A \) is associated with exactly one element in set \( B \).

### Step 1: Identify the sets A and B
- Set \( A = \{1, 3, 5, 9\} \)
- Set \( B = \{-2, 7, -6, 0, 1, 2\} \)

### Step 2: List the pairs in the relation
The pairs in the relation are:
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