Function Relationships

For the table of data, state the domain.

Function or not a function

• function

• not a function

Function or not a function

• function

• not a function

Function or not a function

• function

• not a function

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Evaluate f(-2) if f(x) = x + 3

• -1
• 1
• 5
• -5

Evaluate f(-2) if f(x) = x + 3

• -1
• 1
• 5
• -5

If I know that f(2) = 4, what is another way I can write my answer?

• 2,4

• (2, 4)

• That is the only way to write it.

For the function f(x) = -3(x-1) find f(0).

• 0
• -3
• 3
• -1

• The relation is a function.

• The relation is not a function.