Relations and Functions

All of the x-coordinates or inputs are called what?

• Domain

• Range

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the best definition of function?

• Any set of ordered pairs

• Every input has exactly one output

• Every output has exactly one input

• A special relation

Tags

CCSS.8.F.A.1

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, what is the domain and range?

• D: {-4, -3, 1}

  R: {-4, 0, 1, 2}

• D: {-4, 0, 1, 2}

  R: {-4, -3, 1}

• D: {0, 1, 2, 3, 4}

  R: {-4, -3, 1}

• D: {(0,1),(1,-3)}

  R: {(2,-4),(-4,1)}

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

What is the domain of the table?

• {-4, 0, 1, 3}

• {-2, 0, 2, 3}

• {-4, -2, 0, 1, 2, 3}

• { (0, 0), (2, -4), (3, 3), (-2, 1) }

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the range of the following graph?

• {-5, -1, 0 , 1, 5}

• {-4, -2, 0, 3, 6}

• -4 < x < 6

• -5 < y < 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain and range?

• D: {0, 4, 7}

  R: {-3, -1, 2, 4}

• D: {-3, -1, 2, 4}

  R: {0, 4, 7}

• D: {-3, -1, 0, 4}

  R: {2, 4, 7}

• {(-3,0), (-1,4), (2,7), (4,4)}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which relation has a domain of {3,7} and a range of {0,5} ?

• {(3,5), (3,7), (0,5), (0,3)}

• {(3,0), (7,0), (3,5), (7,5)}

• {(3,0), (3,5), (3,7), (7,5)}

• {(7,0), (5,7), (3,5), (7,5)}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Does this table represent a function or not a function?

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Is the relation a function? Why?

• Yes, because the y-value 4 has two x-values paired with it.

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

• No, because the y-value 4 has two x-values paired with it.

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

Tags

CCSS.8.F.A.1

Is this mapping a function or not a function? Why?

• Yes, because the y-value 10 has two x-values paired with it.

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

• No, because the y-value 10 has two x-values paired with it.

• No, because the x-value 6 has two y-values paired with it.

Tags

CCSS.8.F.A.1