Functions Review (Tables)

Please find the value of Y when x equals 2 to complete the table.

Please find the value of Y when x equals 4 to complete the table.

Please find the value of Y when x equals -2 to complete the table.

Please find the value of Y when x equals 4 to complete the table.

Look at this graph. Is the relation a function?

• yes

• no

Which graph does NOT pass the vertical line test?

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

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

.

• Function
• Not a Function

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

What is the domain of a relation?

• the set of all x-values

• the set of all y-values