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OpenStudy (anonymous):
PLEASE HELP!!!! Which equation represents a direct linear variation? A. y = x – 3 B. y = x2 C. 1/x D. 1/3x
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OpenStudy (anonymous):
y=2x, option B
OpenStudy (anonymous):
How
OpenStudy (anonymous):
Because it is in the form y=kx.
OpenStudy (anonymous):
k is a non-zero constant
OpenStudy (anonymous):
direct linear variation means the ratio of the two variables must be constant
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OpenStudy (anonymous):
you can write y= 2x as y/x = 2
OpenStudy (anonymous):
C and D aren't equations at all. A doesn't vary.
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