Identify Functions Mapping Diagram

Given the mapping diagram shown, is this relation a function?

• Yes, because every input (x) is paired with exactly one output (y).

• No, because the input (x) of 2 is paired with more than one output (y). 2 is paired with 20 AND 40.

Which set of points shown below is a function?

• {(4, 3), (4, 6), (7, 9)}

• {(0, 2), (1, 8), (3, 11)}

Is the graph shown a function?

• Yes, because the graph passes the Vertical Line Test.

• Yes, because the graph passes the Horizontal Line Test.

Given the mapping diagram shown, is this relation a function?

• Yes, because every input (x) is paired with exactly one output (y).

• No, because the output (y) of 4 is repeating and is paired with more than one input (x).

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Is this mapping a function or not a function? 

• Function

• Not a Function 

Is this set of ordered pairs a function or not a function? 

• Function

• Not a Function 

Is this set of ordered pairs a function and how can you tell?

• Yes its a function because no y values repeat

• No it's not a function because there are negative numbers

• No it isn't a function because an x value repeats but has different y values 

• No it isn't a function because an y value repeats but has different x values

Is the graph shown a function? Why or why not?

• Yes, because the graph represents a relation between an input and an output.

• Yes, because each output corresponds to one input.

• No, because the function has negative values.

• No, because each input does not correspond to only one output.

Determine whether the relation shown is a function.
The relation ​ ​ (a)   a function because ​ ​ (b)   is mapped to ​ (c)   output value.

• is

• is not

• every input value

• the input of 3

• more than one

• exactly one