anonymous
  • anonymous
Which of the following expressions represents a function? x2 + y2 = 9 {(4, 2), (4, –2), (9, 3), (9, –3)} x = 4 2x + y = 5
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Do you know what a function is?
anonymous
  • anonymous
well sort of
anonymous
  • anonymous
What do you think it is?

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anonymous
  • anonymous
c
anonymous
  • anonymous
A function is where one input has EXACTLY one output. So do you thing that C has one input and one output?
anonymous
  • anonymous
oo so its B
anonymous
  • anonymous
Yes cause you dont have a repeat of a number the X side which is your output
anonymous
  • anonymous
OOO ok. lol can u continue helping me with 3 more questions if u have time?
anonymous
  • anonymous
You have: (4, 2) (4, –2) (9, 3) (9, –3) This wouldn't be a function: (4,2) (4,-2) (9,3) (9,3) Cause you have a repeat of the number 3 in the X side
anonymous
  • anonymous
ooooo ok lol thx alot
anonymous
  • anonymous
You're Welcome

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