Q: Which of the following represents a function? (Choose all correct answers.)
A. {(4,2), (6,2), (-1,5), (3,-2), (-4,-7)}
B. {(4,2), (5,1), (-1,5), (5,-2), (4,-2)}
C. {(-1,-1), (1,1), (4,4), (3,3), (6,6)}
D. {(1,2), (3,2), (5,2), (7,2), (9,2)}
Answer:A
Q: Which of the following represents a function? (Choose all correct answers.)
A. {(4,2), (6,2), (-1,5), (3,-2), (-4,-7)} B. {(4,2), (5,1), (-1,5), (5,-2), (4,-2)} C. {(-1,-1), (1,1), (4,4), (3,3), (6,6)} D. {(1,2), (3,2), (5,2), (7,2), (9,2)}