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sammixboo (sammixboo):
POSTING CHOICES IN COMMENTS....
Which of the following represents a direct variation?
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sammixboo (sammixboo):
A.
sammixboo (sammixboo):
B. Lance bought 3 CDs and spent twenty-seven dollars. Jacob bought 5 CDs and spent forty-five dollars.
C. y = x - 13
sammixboo (sammixboo):
@phi @Compassionate @beccaboo333
OpenStudy (bibby):
direct variations are usually formatted like: "y = kx" where k is some number.
So we can immediately cancel C
sammixboo (sammixboo):
Yes
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OpenStudy (bibby):
now if you look at the table in A, each row has a different formula.
for example if x = 5, y = 25:
y=5x
but on the 3rd row
y= 3x
OpenStudy (bibby):
Try and solve the direct variations in B.
3CDs for $27
5CDs for $45
sammixboo (sammixboo):
So it would be B, because on direct variation the formula is always the same, and in the table in A. case it isn't...
OpenStudy (bibby):
I'm not entirely postive that's the case, but I'm PRETTY sure. You can hold it against me if it's wrong
sammixboo (sammixboo):
Ok... Thanks Bib :D
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sammixboo (sammixboo):
I will tell you if we got it or not.
OpenStudy (bibby):
the suspense is too much
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