Question

How do you find the domain of: x(16-x^2)
(Letter b in the picture)

Answer 1

If it is the blue line, then the answer is from (-∞,∞)

But if it is the rectangle, then the domain of that would just be (0,2.4) (at least that looks like 2.4) but you could also say the domain is from (0,y) as the coordinate they give you is (x,y)

Hope this helped!