Which Set of Ordered Pairs Is a Function? for Each

question 8

Multiple Choice

Which set of ordered pairs is a function? For each function, name the set of inputs (domain) and the set of outputs (range) . a. (7, 9) , (7, 11) , (7, 13)
b. (7, 9) , (9, 11) , (11, 13)

• A) b is a function. Domain is {7, 9, 11}, range is {9, 11, 13}.
• B) a is a function. Domain is {7}, range is {9, 11, 13}.
• C) a is a function. Domain is {7}, range is {9, 11, 13}.
• B is a function. Domain is {7, 9, 11}, range is {9, 11, 13}.
• D) b is a function. Domain is {7}, range is {9, 11, 13}.
• A is a function. Domain is {7, 9, 11}, range is {9, 11, 13}.
• E) a and b are not functions.

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