Noah finds an expression for V(x) that gives the volume of an open-top box in cubic inches in terms of the length x in inches of the cutout squares used to make it. This is the graph Noah gets if he allows x to take on any value between -1 and 5. A.) What would be a more appropriate domain for Noah to use instead?

B.) What is the appropriate maximun volume for his box?

(I'm having a hard time figuring out a domain. I would really appreciate the help)