Functions Review

Which graph represents a function?

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Which table does NOT represent a function?

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Determine whether the relation shown here is a function. Explain your answer.

• function, an input has 1 output

• function, an input has 2 different outputs

• function, no output has 2 different inputs

• not a function, an input has 2 different outputs

Which equation matches the table?

• y = x - 3

• y = x + 3

• y = 4x - 3

• y = 4x + 3

Is this  graph a function?

• Function
• Not a Function

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

• Function
• Not a Function

• Function
• Not a Function

• Function
• Not a Function