TheEdwardsFamily
  • TheEdwardsFamily
Medal plus Fan!! Determine which relation is a function. http://prntscr.com/9f197y <--- A & B http://prntscr.com/9f1a7h <--- C & D
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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TheEdwardsFamily
  • TheEdwardsFamily
Is it B?
Owlcoffee
  • Owlcoffee
When we have two variables x and y, and we name them in such a way that one can have any arbitrary value while the other is solvable for, we call this relationship "functional relation between variables". This of course is notated as \[y=\phi (x)\] Meaning, "y" is a variable that depends on "x" and you know it better as f(x). Now, \(\phi (x)\) is often represented by a mathematical expression which determines the pattern of the functionality of the variable "y".
TheEdwardsFamily
  • TheEdwardsFamily
so b? @Owlcoffee

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Owlcoffee
  • Owlcoffee
Maybe... Why do you think it's "B"?
TheEdwardsFamily
  • TheEdwardsFamily
because, it passes through the line(the function). http://prntscr.com/9f1hym
TheEdwardsFamily
  • TheEdwardsFamily
@Owlcoffee
Owlcoffee
  • Owlcoffee
Wat do you mean it "passes through the line".? The circle cuts the x-axis as well, but it is not a function. There is something very important, traditional functions whose variable depends on the other have that is important.
TheEdwardsFamily
  • TheEdwardsFamily
Im so confused. >.> sorry
Owlcoffee
  • Owlcoffee
B is correct. not because it intersects the axis, but because every x in the domain has one and only one value of "y", that is a definition for "function".

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