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  • Man! functions are tough I don't know the first step into solving one!
  • Hey, Kyle you called? let me guess you don't understand how a noob beat you in Fornite?
  • Hey and no Ava I need help with functions can you help?
  • None of the numbers repeat
  • Well function is a relation of one set of inputs so if you have -2, -1, 0, 1, and 2 for the value of X(Domain) and you have -2,2,6,10,14 for Y(Range) you can see clearly that none of the numbers repeat so it is a function
  • X -2 -1  0  1  2
  • Y -2  2  6  10  14
  • None of the numbers repeat
  • So what if we have Order pairs or even Mappings?
  • All of them still follow the same rule if not their not functions
  • 1 2 3 4
  •  3  0 -3 -6
  • 9  8 7 6
  •   -1    0      2
  • x y      x y    x y     x y
  • Nice, so it all has to do with looking at the X and Y. Functions are not so bad after all
  • (2,3),(-4,5),(2,7),(7,-2)
  • Order pairs are like tables either label the X and Y or make a table as for Mappings you check on the domain side if more than 1 line goes to one number it's not a function.
  • x y      x y    x y     x y
  • (2,3),(-4,5),(-2,7),(7,7)
  • OoF ok thanks Ava  
  • Now practice 'cause i wanna see your growth unlike your kills in fortnite
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