Question

for a different punch recipe, the equation,s=4c represents the number of cups of seltzer,s, that you need for,c, cups of cranberry juice. what is the constant of proportionality?

Answer 1

4

Explanation:

If two variables are proportional then

`y\propto x`

`y=kx` ...(i)

where, k is constant of proportionality.

The given equation is

`s=4c` ...(ii)

where,

s = number of cups of seltzer.

c = cups of cranberry juice.

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

Independent variable:
`x=c`

Dependent variable:
`y=s`

Constant of proportionality:
`k=4`

Therefore, the constant of proportionality is 4.