(a) f(x) is not bounded below.
(b) 0. It is in the range.
(c) -0.25. It is in the range.
(d) -1. It is in the range.
(e) q(x) is not bounded below.
Section 1.5, Extension of Exercise 63 (page 124)
Answers
(d) The ball clears the fence for both angles. The optimal angle appears to be 30°.