Intro to Functions

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

Which set of values 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 table a function or not a function? 

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Is it a function?

• Yes

• No

• All real numbers

• All real numbers except 2

• All real numbers except 0

• All real numbers except -2

• All real numbers

• All real numbers except 2

• All real numbers except 0

• All real numbers except -2

Which of the following is the graph of a linear function?

• A parabola

• A straight line

• A circle

• A hyperbola

Tags

CCSS.HSF-IF.C.7A

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

Tags

CCSS.8.F.A.1

Is it a function?

• Yes

• No

What is the domain?

• {-2, -1, 0, 1, 8}

• {3, 5, 7 , 9, 0}

• {-2, -1, 0, 1, 3, 5, 7, 8, 9}

• {-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9}