Is It a Function

Does this mapping represent a function?

• No, because two inputs map to 0

• No, because two inputs map to 1

• Yes, because 0 maps to 0 and 1 maps to 1

• No, because the inputs can result in more than one output

Tell me about this table (choose 2):

• It represents a function

• It does NOT represent a function

• Because the x-values repeat

• Because the x-values do NOT repeat

Tell me about this mapping (select 2):

• It represents a function

• It does NOT represent a function

• Because one input (4) results in two outputs (-5 & 0)

• Because two inputs (6 & -3) result in one output (4)

Which set of coordinates represent a function? (Select all that apply)

• {(1,1), (2,2), (3,3), (4,4), (5,5)}

• {(1,5), (2,4), (3,3), (4,2), (5,1)}

• {(3,6), (4,7), (5,8), (6,9), (4,0)}

• {(-2,0), (0,-2), (3,-5), (-5,3), (10,-6), (-6, 10)}

Which tables represent functions? (Select all that apply!)

• 
• 
• 
• 

Is this table a function or not a function? 

• Function

• Not a Function 

Is the relation a function?

{(1,5), (1,7), (3,9), (4,11)}

• Yes

• No

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

• Yes its a function because no y values repeat

• No it isn't a function because an x value repeats

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

• Yes it is a function because no x values repeated

• No it isn't a function because an x value repeated

Which example is NOT a function?

• Example 1

• Example 2

• Example 3