Mona A.

asked • 03/04/18

Which equation has a constant of proportionality o 2?

A. Y=x+2
B. Y=x-2
C. Y=2
D. Y=1/2x

1 Expert Answer

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Inactive Tutor answered • 03/04/18

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If you express (D) as
 
x = 2Y
 
then you have a constant of proportionality of 2.  Perhaps (C) has a typo and you meant to say
 
Y = 2x ?
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Inactive Tutor

No need to convert. In D the constant of proportionality is 1/2.
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03/04/18

Inactive Tutor

Then for Y as a function of x, the answer has to be "none of the above" for the problem as stated.
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03/04/18

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