Question

Which set of ordered pairs represents a function? {(2, –2), (1, 5), (–2, 2), (1, –3), (8, –1)} {(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)} {(6, 8), (5, 2), (–2, –5), (1, –3), (–2, 9)} {(–3, 1), (6, 3), (–3, 2), (–3, –3), (1, –1)}

Answer 1

{(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)}

Explanation:

{(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)}

this set represent a function because there is one input (x) for the output(y)

(no repetition for x)