Input and Output of Functions

Is this mapping a function or not a function? 

• Function

• Not a Function 

If my function rule is 2x + 1, what is the OUTPUT if the input is 2?

• 5

• 4

• 22

• 23

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

Is this mapping a function or not a function? 

• Function

• Not a Function

Match the following

• The set of first coordinates of the ordered pairs (x-values)

• Dependent Variable

• the input of a function

• Range

• a special type of relation that pairs each domain value with exactly one range value

• Domain

• the output of a function

• independent variable

• The set of second coordinates of the ordered pairs (y-values)

• function

The input of a function

• Dependent Variable

• Range

• Independent Variable

• Discrete Graph

The ​ (a)   is a value that is substituted for the independent variable in a fucntion.

• Input

• Output

• x-axis

• y-axis

What we put into a function is called ...

• Output

• Answer

• Evaluate

• Input

Consider a light switch to be a function. What is the output?

• The color of the light switch

• The lights turning on or off

• Flipping the light switch

• The wires connecting the light switch to the light

the value that results from the substitution of a given input into an expression or function

• input

• output

• function