Afda Function and Relations Review

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

• Not a function, each input has more than one output

• Yes it is a function, because each input has exactly on output

• Not a function, input is equal to output

• Yes it is a function, -1/2 is a fraction of 2

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

A set of ordered pairs is called what?

• An Expression

• A Relation

• A Function

• The Vertical Line 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)>

Which relation is a function?

• <(0,1), (1,2), (3,3), (3,4)>

• <(0,2), (1,3), (2,3), (3,2)>

• <(1,3), (2,2), (2,0), (3,4)>

• <(1,2), (2,2), (3,2), (1,3)>

Given: {(5, 2), (7, 4), (9, 10), (x, 5)}, which of the following values substituted for x will make this relation a function?

• 7

• 9

• 4

• 5

Is this graph a function or not a function? 

• Function

• Not a Function

• Function
• Not a Function