Question

y varies indirectly as twice x. When x = 2, y = 3. Find y when x = 6

Answer 1

y=2kx
where, k is constant
plug , x =2 and y= 3
we have,
3 =2k(2)
3=4k
3/4 =k
now we plug k =3/4 in y=2kx
we have,
y =2(3/4)x
that is ,
y =3x/2

Answer 2

for, x = 6
y =3(6)/2 =3(3) =9