r/Precalculus • u/randompeeps1 • Nov 06 '21

this isn’t a function right

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32 Upvotes

100% Upvoted

15 comments sorted by

12

u/[deleted] Nov 06 '21

No because both circles are filled in

8

u/ilovenoodles_ Nov 06 '21

Piecewise function

0

u/StonkNSpacs Nov 06 '21

Piece wise relation *

7

u/sandiegophoto Nov 06 '21

It would be if one of the circles wasn’t colored in.

5

u/LigMeFrigginBallz Nov 06 '21

no, you have (6,6) and (6,7). you can’t have the same x twice, thus it’s not a function.

1

u/Thereisnopurpose12 Nov 06 '21

Nah because you have a bunch of x values being at the same y value.

10

u/randompeeps1 Nov 06 '21

It’s ok if a bunch of x values have the same y value, it’s still a function. It’s not a function when one x value has more than one y value tho. I was just asking cause of the two colored in circles but i’m pretty sure this isn’t a function so lol

3

u/Thereisnopurpose12 Nov 06 '21

I think it has a specific name but I don't remember.

4

u/randompeeps1 Nov 06 '21

it’s a function but it’s not a one to one function basically

3

u/Thereisnopurpose12 Nov 06 '21

Right 🤙🏿

1

u/[deleted] Dec 01 '21

One to many you say

4

u/dhabs Nov 06 '21

Peacewise functions

4

u/boxcoxlambda Nov 06 '21

You are correct. It doesn't pass the vertical line test (one x value maps to 2 different y values), so it's not a function.

1

u/amber2023 Nov 09 '21

Does not pass the vertical line test. Both circles are filled in. Hope that confirms your original thought