Question

he value of y varies directly with x, and y = 1 when x = 3. Find y when x = 18.

Answer 1

The*

Answer 2

3*6=18

Answer 3

1*6=6....y=6

Answer 4

y varies directly with x
then
y=kx where k is the constant of proportionality
y = 1 when x = 3
1=k*3
so k=1/3

so y= x/3 so when x=18
y=18/3 =6