Question

x α if x = 5, y = 18 find the constant of variation and value of x if y = 10.​

Answer 1

Answer:

ANSWER

By definition of proportionality,

If y is directly proportional to x,

y α x

∴y=Kx .......Equation 1

where K is constant of proprtionality

Now,

Given that x=2,y=4

putting the above values in Equation 1 we get,

4=K×2

∴K=2