Math 8 Chapter 4: Functions

Which graph is NOT a function?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

• {1, 2, 3, 4, 5}
• {-1, 1, 2, 3}
• {1, 2, 3, 5}
• [1, 5]

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Evaluate f(-3) if f(x) = 3x + 21

• 12
• 30
• 11
• -30

Tags

CCSS.HSF.IF.A.2

• {-2, 3, 7}
• [-2, 3]
• {1, 2, 2, 3, 4}
• [1, 4]

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

In the set of ordered pairs {(2,-4), (3, 0), (5, 3), (8, 8)}, what is the range?

• {2, 3, 5, 8}
• {-4, 3, 5, 8}
• {2, 0, 3, 8}
• {-4, 0, 3, 8}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Evaluate f(x)= 6x -13, 
find f(3)

• -5
• 4
• 5
• -4

Tags

CCSS.HSF.IF.A.2

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values
• No, because the vertical line test shows there are repeating input values

Does the table represent a function or not a function?

• Function
• Not a Function

Tags

CCSS.8.F.A.1