madisonmay1981 madisonmay1981

04-12-2017
Mathematics

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Which equation represents a proportional relationship? Y=-5(x+1). Y=5x+1. Y=-x. Y=1/5x

Which equation represents a proportional relationship Y5x1 Y5x1 Yx Y15x class=

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mathstudent55 mathstudent55

04-12-2017

A proportional relationship is also a direct variation.
The general equation of direct cvariation is

y = kx,

where k is a number.

In your case, if k = -1, then y = kx becomes y = (-1)x which is the same as

y = -x

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