Tuesday 11/10 Homework: Functions

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Which of these graphs represents a function?

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Consider the graphed function.

What is the domain of this function?

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What is the range for this if the domain is

D:{-8, -4, 0, 2, 6}

Which of the following sets of ordered pairs represents a function?

• {(10,5), (10,-5), (5,10), (5,-10)}

• {(10,5), (-10,-5), (5,10), (-5,-10)}

• {(3,5), (-17,-5), (3,-5), (-17,5)}

• {(-6,-1), (13,8), (1,6), (1,-10)}

Emme bought cashews that cost $3.42 per pound. Which of the following does this situation represent?

• neither a relation nor a function

• a relation only

• both a relation and a function

• a function only

Which of these relations are functions?

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Does the equation below represent a relation, a function, both a relation and a function, or neither a relation nor a function?

• relation only

• both a relation and a function

• function only

• neither a relation nor a function

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