Behavior of Functions

Which of the following statements are true?
I) Ordered pairs represent a relation
II) The independent variable is used for the domain
III) The range is represented by the first number in an ordered pair
IV) In a function each range value is paired with exactly one domain value

• I 
• III
• I and II
• III and IV

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the range of the function f(x)=4x-1 when the domain is {-1,0,1}?

• {-3,-1,3}
• {-5,-1,3}
• {-3,1,3}
• {-5,1,3}

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Is this a function? Explain.

• Yes; it passes the horizontal line test.
• No; it is not a straight line.
• Yes; it passes the vertical line test.
• No; there is a line connecting the dots.

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

What is the range of the graph?

• 1 ≤ x ≤ 5
• 1 < x < 5
• 1 ≤ y ≤ 5
• 1 < y < 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain of the graph?

• 1≤ x ≤ 4
• 1 < x < 4
• 1≤ y ≤ 4
• 1 < y < 4

What is the domain of the graph?

• -7 ≤ x < 5
• -3 ≤ x < 1
• -3 ≤ y < 1
• -7 ≤ y < 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

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