Which set of ordered pairs in the form of (x, y) does not represent a function of x?

A. { (1, 1.5), (2, 1.5), (3, 1.5), (4, 1.5) }

B. { (0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5) }

C. { (1, 1.5), (-1, 1.5), (2, 2.5), (-2, 2.5) }

D. { (1, 1.5), (-1, - 1.5), (2, 2.5), (-2, 2.5) }

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Caroline Johnston

10 December, 18:13

Which set of ordered pairs in the form of (x, y) does not represent a function of x?

A. { (1, 1.5), (2, 1.5), (3, 1.5), (4, 1.5) }

B. { (0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5) }

C. { (1, 1.5), (-1, 1.5), (2, 2.5), (-2, 2.5) }

D. { (1, 1.5), (-1, - 1.5), (2, 2.5), (-2, 2.5) }

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Luz · Answer 1

A function must match each value x to exactly one value y. In set B) we have: (1,3.3) and (1, 4.5), which is not allowed (x = 1 is pair with y = 3.3 and y=4.5). Answer:B)

Which set of ordered pairs in the form of (x, y) does not represent a function of x?A. { (1, 1.5), (2, 1.5), (3, 1.5), (4, 1.5) }B. { (0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5) }C. { (1, 1.5), (-1, 1.5), (2, 2.5), (-2, 2.5) }D. { (1, 1.5), (-1, - 1.5), (2, 2.5), (-2, 2.5) }

Which set of ordered pairs in the form of (x, y) does not represent a function of x?

A. { (1, 1.5), (2, 1.5), (3, 1.5), (4, 1.5) }

B. { (0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5) }

C. { (1, 1.5), (-1, 1.5), (2, 2.5), (-2, 2.5) }

D. { (1, 1.5), (-1, - 1.5), (2, 2.5), (-2, 2.5) }