Identifying Relations and Functions

Function or not? (a)  

Domain =​ (b)  

Range = ​ (c)  

• Function

• Not a Function

• {1, 4}

• {-2, -1, 1, 2}

• {-2, -1, 1, 2, 4}

Tags

CCSS.8.F.A.1

Orin has three sets of ordered pairs. Which of Orin’s sets represents functions?

I. {(0, 0), (0, 1), (0, 2), (0, 3), (0, 4)

1. II. {(0, 0), (1, 1), (2, 2), (3, 3), (4, 4)

2. III. {(0, 0), (1, 0), (2, 0), (3, 0), (4, 0)

• Set I

• Sets I and III

• Sets II and III

• All of the above

Tags

CCSS.8.F.A.1

Which graph does NOT represent y as a function of x?

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Yohan is given the following relations. Which representation shows y as a function of x?

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Tags

CCSS.8.F.A.1

Carrie wrote a set of ordered pairs to show y as a function of x. 

{(−2, −4), (1, 8), (3, −1), (5, 7), (−3, 6)}

Which ordered pair would make Carrie’s set no longer a function? 

• (8, 1)

• (-4, 9)

• (3, 2)

• (4, 6)

Tags

CCSS.8.F.A.1

Simone graphed a function a domain of all real numbers greater than or equal to −1. Which graph represents her function?

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Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Mr. Smith graphed part of a linear function for his students.  What is the range of the part of the function shown? Select the correct answer to complete the statements.

The range is the set of all real numbers ______________ and ______________.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Kyrie graphed a linear function with a domain of all real numbers less than 5 and a range greater than 2. Which graph could represent Kyrie’s function?

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Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Janet was given the function f(x) = 3/2 x - 5. Determine f(6). 

• 4

• 9

• 13

• -2

Tags

CCSS.HSF.IF.A.2