lyzzy7

Is this relation a function?
-3,-6;
-1, -6;
5, -6 ;
8, -6

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Dbro

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Yep

lyzzy7

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thanks!

Dbro

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Sure thing. You wanna know how to figure it out?

lyzzy7

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Yes, please.

Dbro

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Okay, first thing: Im no genius. Im GOOD at math, but im not valedictorian or anything :P
Second: this is really easy to do. A relation is a function so long as no x coordinates are the same. If there are two or more congruent x coordinates, its not a function.

lyzzy7

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ohhhhhh! i get it!

Dbro

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Haha what a blonde :P

lyzzy7

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I know, I know... ;P

lyzzy7

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How do you tell if a sequence is arithmetic?

Dbro

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Like I said, not a genius :/

lyzzy7

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Dang.

Dbro

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Sorry :( i do my best