Question 1000367
It is a direct relationship since both Volume and Temperature very in the same direction (one goes up when the other goes up. ONe goes down when the other goes down).

You are told Charles equation has the form {{{Volume = x*Temperature}}}
{{{6meter^3 = x*500degreeK}}
{{{(6meter^3)/(500degrees = x}}}
{{{0.012meter^3/degreeK = x}}}