Question

The area of a rectangle with a perimeter of 200 cm is modeled by the function A=100l-l^2 where l is the length of the rectangle. What is the reasonable domain for the context of this situation?

Answer 1

\[-100<l <100\]
\[0<l <200\]
\[0<l <150\]
\[0<l <100\]

those are the choices

Answer 2

Please answer

Answer 3

well, hope this make sense
first, the length must be positive number. it means l > 0
2nd, A = 100l - l^2 = l(100-l), it satisfy if 100-l > 0 or
l < 100. so, the union of both = 0 < l < 100