ImaMermaid29
  • ImaMermaid29
Determine which relation is a function. a. https://static.k12.com/calms_media/media/243000_243500/243030/1/9d7da95c78918ed75d524e4f6b201e4bd131428e/VHS_ALG_S2_01_L203_L303_LQ_3A.gif b. https://static.k12.com/calms_media/media/243000_243500/243033/1/07d0ffef1f4e6f4dfc7e2b0a6b695877fa43eaf8/VHS_ALG_S2_01_L203_L303_LQ_3D.gif c. https://static.k12.com/calms_media/media/243000_243500/243031/1/94ac2108bcc0ae61962be36204df63047b8127d6/VHS_ALG_S2_01_L203_L303_LQ_3B.gif d. https://static.k12.com/calms_media/media/243000_243500/243032/1/374682ee8625ec2ab7a388df8263fac6f38c3313/VHS_ALG_S2_01_
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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ImaMermaid29
  • ImaMermaid29
@welshfella please help
anonymous
  • anonymous
To be a function it has to pass the vertical line test
anonymous
  • anonymous
So there shouldn't be more than 1 x-value to a y-value

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More answers

welshfella
  • welshfella
Apply the vertival line test, If you can draw a vertical line which passes through the graph more than once then its NOT a function.
welshfella
  • welshfella
The vertical line can also be the y-axis itself. If the graph itself is vertical then its passes through infinite teims so it not a function.
ImaMermaid29
  • ImaMermaid29
is this a?
welshfella
  • welshfella
a cant be a function as its avertical line.
anonymous
  • anonymous
No a is vertical line in itself so it cannot pass the vertical line test, try and find one where if you draw a vertical line it doesn't intersect with anything more than once
welshfella
  • welshfella
I cant see option d but one of b and c is a function.
ImaMermaid29
  • ImaMermaid29
would this be b?
welshfella
  • welshfella
can you draw a vertical line which pass through the curve b more than once?
ImaMermaid29
  • ImaMermaid29
no.
welshfella
  • welshfella
|dw:1450127159215:dw|
welshfella
  • welshfella
what's that then?
ImaMermaid29
  • ImaMermaid29
dang it.
ImaMermaid29
  • ImaMermaid29
OHHHHH NOW I GET IT
welshfella
  • welshfella
|dw:1450127225851:dw|
welshfella
  • welshfella
good sometimes a picture is better than words...
ImaMermaid29
  • ImaMermaid29
so the answer is c because only one vertical line can pass through it?
welshfella
  • welshfella
exactly
anonymous
  • anonymous
Absolutely right good explanation welshfella
ImaMermaid29
  • ImaMermaid29
THANK YOU SO MUCH!
welshfella
  • welshfella
glad to be of help goota go

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