Is it a function?
No
Does this graph represent a function?
Yes
Does this graph represent a function?
No
Does this mapping represent a function?
Yes
Does this mapping represent a function?
No
Does this set of ordered pairs represent a function? (2 , -7) ( 8 , 5) ( 14 , 6 ) ( 2 , 13 )
Yes
Does this set of ordered pairs represent a function? (3 , 8) ( 1 , 8 ) ( 14 , 8) ( 12 , 8 )
No
Does this set of ordered pairs represent a function? (4 , -7) ( 4 , 0) ( 0.9 , 19) ( 2 , 7 )
Yes
Does this set of ordered pairs represent a function? (4 , -7) (-4 , 0) ( 0.9 , 19) ( 2 , 7 )
No
Does this set of ordered pairs represent a function? (8, 1) ( 8 , 10 ) ( 8 , 4) ( 8 , 21 )
No
Does this table represent a function?
Yes
Does this table represent a function?
Function
a special relation where each x-value has exactly one y-value
Vertical Line Test
draw a vertical line through the graph; if it crosses more than once it is NOT a function
Domain
the x-values in a relation; the input
Range
the y-values in a relation; the output