Interpreting Functions and Relations Test

Which relation is not a function?

• {(1,-5), (3,1), (-5,4), (4,-2)}

• {(2,7), (3,7), (4,7), (5,8)}

• {(1,-5), (-1,6), (1,5), (6,-3)}

• {(3,-2), (5,-6), (7,7), (8,8)}

Is this graph a function or not a function? 

• Function

• Not a Function

Which graph is not a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Which graph is a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

The relation ​ (a)   a function.

• is not

• is

Is this graph a function or not a function? 

• Function

• Not a Function

Is the relation in this table a function?

• Yes, each input has exactly one output

• No, each input has more than one output

• No, the cost of the movies is different

• Yes, each output has exactly one input

Is this mapping a function or not a function? 

• Function

• Not a Function

Determine if the relation is a function

• Yes, each input has one output

• Yes, each output has one input

• No, because the pattern is 4

• No, each input is the same as the output

What is the definition of function?

• Each input has outputs

• Each input has exactly one output

• Each output has exactly one input

• A list of x-values and y-values