Functions With Ordered Pairs

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Which relation is not a function?

• (2,2), (4,4), (6,6), (8,8), (10,10)

• (1,5), (3,5), (5,5), (7,5), (9,5)

• (-4,1), (-2,3), (0,5), (2,7), (4,9)

• (1,8), (2,7), (3,6), (4,5), (4,4)

Which graph shows a relation that is a function?

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Which table shows a relation that is a function?

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A set of numbers, or coordinates, written in the form (x, y).

• ordered pair

• x-coordinate

• y-coordinate

• discrete graph

A set of ordered pairs.

• relation

• domain

• range

• mapping

The set of first numbers (x-values) of the ordered pairs in a relation.

• domain

• range

• mapping

• function

The set of second numbers (y-values) of the ordered pairs in a relation.

• range

• mapping

• function

• coordinate plane

A relation in which each element of the domain is paired with exactly one element of the range.

• function

• relation

• domain

• range

The x-value of an ordered pair, represents the horizontal placement of the point. (12, 7) 12 is the x-coordinate

• x-coordinate

• y-coordinate

• discrete graph

• continuous graph