Functions, Domain, Range and Operations of Polynomials

Does this table represent a function?

• Yes

• No

• No way to know

Does the graph show a function?

• Yes

• No

What is a function?

• A relation that maps every domain value to exactly one range value.

• A relation that maps every range value to exactly one domain value.

• Any set of ordered pairs.

• Any graph of x and y values.

What is the domain?

• x = 2

• −∞ < x < ∞

• y = 2

• none of these

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.

What is the Domain of this linear function?

• [-6, 6]

• [0, 7]

• [2, 7]

• No Solution

What is the range of the graph?

What is the domain of the graph?

• {x| -∞ ≤ x ≤ ∞}

• (-∞,∞)

• -3 ≤ x ≤ 3

• -15 ≤ y ≤ 9

• Function
• Not a Function

All of the x values or inputs are called what?

• Domain

• Range

• Relation

• Function