Function Review (Lesson 3.1 and 3.2)

Which relation is a function?

• {(1, 0), (3, 0), (1, 1), (3, 1) (1, 3)}

• {(1, 1), (2, 2), (3, 3), (4, 4), (5, 8)}

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

• {(9, −3), (9, 3), (4, −2), (4, 2), (0, 0)}

Tags

CCSS.8.F.A.1

Which relation is NOT a function?

• {(1, 3), (3, 5), (5, 7), (7, 9), (9, 1)}

• {(4, 1), (8, 2), (12, 3), (16, 4), (20, 4)}

• {(−4, 6), (0, 6), (7, 6), (4, 6),
  (−7, 6)}

• {(7, 3), (7, 6), (7, 9), (7, 12),
  (7, 15)}

Tags

CCSS.8.F.A.1

Which relations are functions? Select ALL that apply.

• {(3, 2), (–1, 7), (–3, 1), (0, 9), (2, –4)}

• 
• 
• 

Tags

CCSS.8.F.A.1

What is the domain of the function?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the range of the function?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Pilar is given the following set of ordered pairs {(2, 4), (4, 6), (6, 8), (8, 10),
(12, 8)}. Pilar incorrectly identified two of the key features of relations and
functions. Select which of the following are the INCORRECT key features listed below.

• The domain is {2, 4, 6, 8}.

• The range is {4, 6, 8, 10}.

• The set of ordered pairs is a relation.

• The relation is not a function because two inputs go to the same output.

• The relation is a function because it passes the vertical line test.

Tags

CCSS.8.F.A.1

Find the value of f(–2) for the function f(x) = 4x + 10.

• -3

• -2

• 2

• 18

Tags

CCSS.HSF.IF.A.2

What is the value of f(-3) when f(x) = 2x - 5?

Tags

CCSS.HSF.IF.A.2

Graph the function f(x)=3x-4

Tags

CCSS.HSA.CED.A.2

Graph the function f(x)=1/2x+5

Tags

CCSS.HSA.CED.A.2