Question

if y is directly proportional to (x+y^2) and y=32.4 when x= 4 calculate thr valur of x when y= 169​

Answer 1

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

Answer 2

Answer:

hope it helps.........