Question 119978: which set of ordered pairs represents a function?
a.(3,4),(4,5),(5,6),(3,7)
b.(3,6),(3,9),(3,12),(3,15)
c.(3,4),(3,5),(3,6),(3,7)
d.(3,4),(5,6),(7,8),(9,10)
Answer by HyperBrain(694)   (Show Source):
You can put this solution on YOUR website!Ordered pairs are represented as (x,y) . A set of ordered pairs will be a function if and only if there are no repetitions of x.
a.(3,4),(4,5),(5,6),(3,7)
'tis not a function, the x's are 3,4,5,and 3 again? getz?
pursuing,
b.(3,6),(3,9),(3,12),(3,15)---not a function, 3 repeated all throughout
c.(3,4),(3,5),(3,6),(3,7)---not a function, 3 repeated all throughout
d.(3,4),(5,6),(7,8),(9,10)---a certified function!
Power up,
HyperBrain!
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