What is the Federal minimum wage law?

Yes I am an assistant manager at a convenient store in Texas and was wondering will the new federal minimum wage of $10.10 per hr. apply to me? Does Texas follow the federal minimum wage act? I’ve been trying to do all the research I can but I seem to get confused about all the "legal terms". But if I’m correct Texas follows under the Federal minimum wage act and I should be qualified right? I understand that baby-sitters, work from home, or salesman etc. doesn't qualify for it. But when I started I was getting $7.25 per hour and just recently got a $1 raise. Please clarify any of this so I have a better understanding.