If y varies directly as x and y =18 when x =3 what is the relationship between x and y find y when x =18
If y varies directly as x, then we can represent this relationship with the equation y = kx, where k is the constant of proportionality.
Given that y = 18 when x = 3, we can substitute these values into the equation to solve for k:
18 = k * 3
k = 6
Now that we know the value of k, we can find y when x = 18:
y = 6 * 18
y = 108
So, the relationship between x and y is y = 6x, and when x = 18, y = 108.