Functions Domain Range

Identify the domain of the following relation:

• {-6, 14, 2, 28}

• {(-6,14), (0,32), (2,38), (4,44)}

• {-6, 0, 2, 4}

• {14, 32, 38, 44}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is this mapping 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 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

What is the domain of the graph?

• y≥1

• x ≥ 1

• All real numbers

• none of these

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

A student borrowed $480 from a friend. He agreed to make monthly payments of $96 with no interest until the loan balance was paid off. The function shown models this situation, where f(x) represents the remaining loan balance in dollars after the student has made x monthly payments. Which statements are true about the domain and range of the function for this situation? Select the correct answers.

• D: {0, 1, 2, 3, 4, 5}

• R: {0, 96, 192, 288, 384, 480}

• D: all real numbers

• R: {0, 1, 2, 3, 4, 5}

• : {0, 96, 192, 288, 384, 480}

• D: {0, 96, 192, 288, 384, 480}

• R: all real numbers

Answer explanation

Domain - x values

Range - y values

Real-world examples = apply common sense and judgements

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain and range for this graph?

• All real numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain & range?​ (a)   ​ (b)  

• domain: x=3

• range: all real numbers

• domain: all real numbers

• range: y=3

• range: -5<y<10

• domain: x>3

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Select TWO correct answers.

Domain

​ (a)  

Range

​ (b)  

• The domain of the function is {0,1,2,3,4,5}

• The range of the function {0,96,192,288,384,480}

• The domain of the function is all real numbers

• The domain of the function {0,96,192,288,384,480}

• The range of the function {0,1,2,3,4,5}

• The range of the function is all real numbers.