Which set of ordered pairs does not represent a function?
Answer
Multiple Choice Answers

left curly bracket, left bracket, 3, comma, minus, 5, right bracket, comma, left bracket, 7, comma, 4, right bracket, comma, left bracket, 8, comma, minus, 9, right bracket, comma, left bracket, 3, comma, 1, right bracket, right curly bracket{(3,−5),(7,4),(8,−9),(3,1)}

left curly bracket, left bracket, 7, comma, 9, right bracket, comma, left bracket, minus, 3, comma, 5, right bracket, comma, left bracket, 1, comma, 7, right bracket, comma, left bracket, minus, 1, comma, minus, 6, right bracket, right curly bracket{(7,9),(−3,5),(1,7),(−1,−6)}

left curly bracket, left bracket, 7, comma, 5, right bracket, comma, left bracket, 3, comma, minus, 1, right bracket, comma, left bracket, 9, comma, minus, 1, right bracket, comma, left bracket, minus, 4, comma, 4, right bracket, right curly bracket{(7,5),(3,−1),(9,−1),(−4,4)}

left curly bracket, left bracket, 1, comma, minus, 4, right bracket, comma, left bracket, minus, 6, comma, 7, right bracket, comma, left bracket, 7, comma, 2, right bracket, comma, left bracket, 9, comma, 7, right bracket, right curly bracket{(1,−4),(−6,7),(7,2),(9,7)}