What is the constant proportionally of y=2.5x

The constant of proportionality is 2.5

Step-by-step explanation:

A direct proportion is of the form

y = kx where k is the constant of proportionality

y = 2.5x

The constant of proportionality is 2.5

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form  or  

where

k is the constant of proportionality

In this problem we have

so

the constant of proportionality k is equal to

therefore

the answer is

Step-by-step explanation:The constant of proportionality in the equation  is  

Further explanation:

The relation is defined as the relationship between the input values and output values.

The x coordinates are the domain of the function and the y coordinates are the range of the function.

Given:

The equation is  

Explanation:

The proportionality equation can be expressed as follows,

The value of  changes as  changes. If the value of  increases then the value of y is also increasing.

The equation can be expressed as follows,

The inversely proportional relationship can be expressed as,

Here,  is the proportionality constant.

The given equation is  

The y is the independent variable and  is the dependent variable.

The proportionality constant is 2.5.

The constant of proportionality in the equation  is  

a

step-by-step explanation:

given the 2 equations

- x + y = - 2 → (1)

2x - 3y = 4 → (2)

multiplying (1) by 2 and adding to (2) will eliminate the x- term

- 2x + 2y = - 4 → (3)

add (2) and (3) term by term

(2x - 2x) + (- 3y + 2y) = (4 - 4), simplifying gives

- y = 0 ⇒ y = 0

substitute y = 0 in either of the 2 equations for corresponding value of x

substituting in (2) gives

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 0 ) → a