xbob
need help with test pls
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xbob
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1. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
yes; y = 2.75xyes;
y = 0.6875xyes;
y = 1.375xno;
y does not vary directly with x
SnuggieLad
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Don't ask for answers.
xbob
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i cant fail it again
SnuggieLad
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We can not see the table as it is.
SnuggieLad
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Take a printscreen of the question.
amistre64
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is this a test question? or is this a question for preparing for a test?
xbob
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review
SnuggieLad
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It is a test question. I told him we could not do it FOR him.
SnuggieLad
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This is not a review question
xbob
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amistre64
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reviews are fine then ... or at least thats the better answer of the two :)
xbob
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test review
amistre64
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good luck
SnuggieLad
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Go ahead and take the wheel @amistre64
FriedRice
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so this is a review right?
xbob
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yes thats what i said i just cant fail
FriedRice
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no; y does not vary directly with x
As you can see.....y=2x, y=4x and y=8x are not true from the table.
FriedRice
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wait no!!!
xbob
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can you help me for a bit or are you busy
FriedRice
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to vary directly means to increase as it increases
as x gets bigger, y gets bigger; so there is some direct variance at play
if the ratio between x and y is the same for each point; then you will know the constant of variation
looks to be a ration of 8/11 = x/y
y = (11/8)x
1.3 ... id go the 3rd option
xbob
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it took you that long to write wait no
FriedRice
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yup
xbob
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k one sec
xbob
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2. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
yes; y = 2x
yes; y = 4x
yes; y = 8x
no; y does not vary directly with x
FriedRice
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no; y does not vary directly with x
FriedRice
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hello you there?
xbob
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yeah one sec sorry had to cook hot water
xbob
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FriedRice
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the first one is the answer.
xbob
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for which one?
FriedRice
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the one on top
FriedRice
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and on the bottom is the 4th one
FriedRice
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ill wait
xbob
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ok
xbob
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FriedRice
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too blurry
xbob
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oh sorry
xbob
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xbob
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is that better for you?