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anonymous
 one year ago
Can some explains this to meh. please?
anonymous
 one year ago
Can some explains this to meh. please?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Look at these sets of ordered pairs. W) {(8, 9), (2, 3), (0, 2), (10, 9)} X) {(0, 0), (5, 10), (3, 3)} Y) {(1, 1), (2, 2), (3, 3), (4, 4)} Z) {(10, 1), (9, 3), (4, 5)} Which of the sets represent functions?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0W is a function because each of the x values (first values in each pair) has a different value of y associated with it

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0Z is also a function for the same reason

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what you are saying is that w and z are functions because x and y do not have the same values

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0Y maps on to itself  not sure but i think a function can do that.

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1i hate to disgree with @welshfella but this is what you need to look at: if all the x values are distinct (all different) then it IS a function if there are repeated x values (some are the same) then it is NOT a function

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1ignore the y values completely they have nothing whatsoever to do with it

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0no a relation is a function if each value of x only maps on to a single value of y so a function can be onetoone or many=toone but it cant be onetomany

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1\[W) \{(\color{red}8, 9), (\color{red}2, 3), (\color{red}0, 2), (\color{red}{10}, 9)\}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1all x's are different, it IS a function

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0so {(3,1) (2,3) is a function but {(3,1) (3,4) is not a function (as its onetomany)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so which values do i compare to tell if one value is a function itself

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0This is not my expertise but aren't they all functions?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so W,Y, and Z are the functions or is it all of them

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0yes you are right misty  my error

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0I think all of them are

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am sorry i am confused which ones are the functions and which ones are not?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay thank you @welshfella and thank you as well @misty1212

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0just check out the x values as misty said  they are all different in each function

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0I have trouble with functions on times.....

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0 you can have repetition of y values but not of x values so { (1,2), (2,2) } for example is a function because its manytoone
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