Quiz Review - Functions, Domain and Range

Why is the following relation NOT a function?

(2, 3), (4, 9), (3, 8), (4, 15)

What is the RANGE?

• {-3, 3]
• all real numbers
• [-4, 5]
• [-4, ∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Is the relation shown a function?

• No, because the x-value 11 is paired with 5 and 8.

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

Tags

CCSS.8.F.A.1

What is the domain in set notation?

• [ -2 , 2 ]

• [ 4 , -4 ]

• -2 ≤ x ≤ 2

• 4 ≥ y ≥ -4

What is the domain in interval notation?

Express the following in Interval Notation

-8 ≤ x < 8

Express the following in Interval Notation

-9 < x ≤ -4

What is the domain of the function?

• (3, ∞)
• [-3, ∞)
• (-∞, 4]
• (-∞, 4)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain of the graph in interval notation?

• [1,∞)

• (-∞,1]

• (-∞,∞)

• [-∞,∞]

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

In interval notation,

 $\infty\ \&\ -\infty$  are always closed in by ______.

• ( ) Parentheses

• [ ] Square Brackets

• { } Curly Brackets

Tags

CCSS.6.EE.B.8