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s344n2d4d5 [400]
3 years ago
14

Which equation represents a proportional relationship?

Mathematics
2 answers:
umka2103 [35]3 years ago
8 0

As written here, both choices B and C represent proportional relationships:

... B. y = 12x

... C. y = 3x

_____

One key to a proportional relationship is that when one variable is zero, so is the other. This will not be the case for selections A and D.

Setler [38]3 years ago
7 0

Answer:

y=12x

y=3x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope of the line m, and the line passes trough the origin

so

case A) y=-3x+2  

Is a linear equation but does not passes trough the origin

case B) y=12x

Is a linear equation and passes trough the origin-----> represent a proportional relationship

case C) y=3x  

Is a linear equation and passes trough the origin-----> represent a proportional relationship

case D) y=2(x+13)

Is a linear equation but does not passes trough the origin

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