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Question

snowcrystal · Answer

State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inverse variation, write a function to model it.

snowcrystal · Answer

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xmissalycatx · Answer

What do you think it is, and why?

snowcrystal · Answer

I don't know to be honest with you I don't understand any of this stuff ive been working on

xmissalycatx · Answer

attachment

xmissalycatx · Answer

Use that to help you. Based off of that picture, what can you determine/assume now?

snowcrystal · Answer

that it is a direct variation

xmissalycatx · Answer

Is it though? You have (20, 20) as well. All of the other things are able to be divided/multiplied by 3 except that one.

snowcrystal · Answer

darn it was supposed to be 20,60 not 20,20

xmissalycatx · Answer

Okay, then yes, it would be direct variation. Can you tell my why you think so though?

snowcrystal · Answer

because each x value can be multiplied by 3 to get the y value.

dogzcatz · Answer

This is a direct variation, because as x&y increases

xmissalycatx · Answer

Correct @SnowCrystal :)

And @DogzCatz That isn't always correct. You can have (2, 4), (3, 9), (4, 16) and it wouldn't be direct.

snowcrystal · Answer

thanks :)

dogzcatz · Answer

there are always expections, but in this case