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Mathematics 14 Online
OpenStudy (abbster2015backup):

Please help! Will medal and fan :)

OpenStudy (abbster2015backup):

OpenStudy (abbster2015backup):

@okdutchman7

OpenStudy (erak):

To see if a table of values has a direct linear relation, you have to find the first differences. Do you know how to do that?

OpenStudy (abbster2015backup):

Nope lol

OpenStudy (erak):

Basically the pattern is in the f(x) row. Just do 6-0, 12-6, 18-12, and so on. They all have the first difference of 6.

OpenStudy (erak):

It's kinda like the next one minus the one before.

OpenStudy (erak):

That would be your k, or constant of variation as they call it in your question. If you this k is constant throughout the table of values, you have a direct linear relation.

OpenStudy (abbster2015backup):

Ohhhh

OpenStudy (abbster2015backup):

Does it count if it's -6?

OpenStudy (erak):

So you'd be doing the other way around. You know it's 6 because it's basically increasing by 6 each time.

OpenStudy (abbster2015backup):

Oh okay, thanks!

OpenStudy (erak):

Oh it's important to note that the x values must also be going up by a constant value to get the k value

OpenStudy (abbster2015backup):

THat makes sense

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