Question

Which equation has a constant of proportionality equal to 2?

chose 1 answer:
a: y=10/5x
b:y=2/2x
c:y=2/4x
d:y=22/22x

Answer 1

A

Explanation:

The equation
`y=kx` describes the proportional relationship between variables x and y. In this equation, k is the coefficient of proportionality.

Consider all options:

A. For the equation

`y=(10)/(5)x,`

the coefficient of proportionality is

`k=(10)/(5)=2`

B. For the equation

`y=(2)/(2)x,`

the coefficient of proportionality is

`k=(2)/(2)=1`

C. For the equation

`y=(2)/(4)x,`

the coefficient of proportionality is

`k=(2)/(4)=(1)/(2)`

D. For the equation

`y=(22)/(22)x,`

the coefficient of proportionality is

`k=(22)/(22)=1`