Identifying Functions Ordered Pairs

Which set of ordered pairs is a function?

• <(9,5), (10,5), (9,-5), (10,-5)>

• <(3,4), (4,-3), (7,4), (3, 8)>

• <(6,-5), (7, -3), (8, -1), (9, 1)>

• <(2, -2), (5, 9), (5, -7), (1, 4)>

Tags

CCSS.8.F.A.1

Is this mapping a function or not a function?

• Function; the x's don't repeat

• Not a Function; the x's repeat

Tags

CCSS.8.F.A.1

Does this mapping diagram represent a function?

• No, because an input value goes to multiple output values

• Yes, because each input goes to one and only one output

Tags

CCSS.8.F.A.1

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Which of these sets is not a function?

• { (2,3) , (3,5) , (4,9) }

• { (2,3) , (2,5) , (4, 9) }

• { (2,3) , (3,3) , (4,9) }

Tags

CCSS.8.F.A.1

Does this mapping represent a function?

• Yes

• No

Tags

CCSS.8.F.A.1

Which set of ordered pairs is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

Which graph is a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Which graph is NOT a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4