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3 years ago

Which equation represents a proportional relationship?

Mathematics

2 answers:

Verizon [17]3 years ago

5 0

y = 3 x equation represents a proportional relationship.

Answer: Option B

<u>Step-by-step explanation:</u>

A proportional variation represents a relationship between two variables x and y. It can be expressed in the form y=k x. Here, the ‘k’, the proportionality constant is equal to the slope m and the line goes through the origin

case A) $y=2\left(x+\frac{1}{3}\right)$

A linear equation that not passes through the origin and so not proportional variation

case B) y= 3 x

Is a linear equation but passes through the origin and so proportional variation

case C) y = - 3x+2

A linear equation that not passes through the origin and so not proportional variation

case D) $\text { D) } y=\frac{1}{2 x}$

An inverse variation equation but not passes through the origin and so not proportional variation.

From these, equation option B is the proportion equation because in these equations, there is no addition and subtraction of any constant number. That’s why both these equations become proportional equations.

Nataliya [291]3 years ago

4 0

Answer:

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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Refer to the attachment for the labelling of the triangles.

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