Question

Which function has a restricted domain?

O A. j(r) = (31) — 4
-
OB. g(r) = -(I + 8)³
OC. h(r) = (4r)² - 5
O D. x(s) = (1 + 3) ²

Answer 1

Function g(r) = -(I + 8)³ has a restricted domain, since the cube of any real number can be either positive or negative, but not both. Specifically, in this case, the domain of g(r) is restricted to the set of real numbers where (I + 8)³ is non-negative.