What is the constant of proportionality in the equation StartFraction x over y EndFraction StartFraction 2 over 9 EndFraction? StartFraction 2 over 9 EndFraction
2
StartFraction 9 over 2 EndFraction
9

Given:

The equation is:

To find:

The constant of proportionality.

Solution:

If y is directly proportional to x, then

                       ...(i)

Where, k is the constant of proportionality.

We have,

On cross multiplication, we get

Divide both sides by 2.

Interchange the sides.

               ...(ii)

On comparing (i) and (ii), we get

The constant of proportionality is . Therefore, the correct option is B.

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation: