The following functions all have {1, 2, 3, 4, 5} as both their domain and codomain. For each, determine whether it is (only) injective, (only) surjective, bijective, or neither injective nor surjective. ? ? ? ? ✓1. f v 2. f = = 1 1 4. f(x) ✓ 3. f(x) = 1 2 3 2 4 3 2 3 4 5 1 2 2 3 = ſ³ X - X √x+2 6 - X 4 5 1 2 if x < 3 if x > 3 if x < 4 if x > 4

Which of the following formats should be used for the domain of the function: 2-1 f(z) = %3D 2- 6z + 5 Oz + M Oz z M OrS M O All Real Numbers

Consider the following functions. f={(−2,1),(2,−4),(4,−4),(−1,1)}f={(−2,1),(2,−4),(4,−4),(−1,1)} and g={(−1,−4),(2,1)}g={(−1,−4),(2,1)} Step 2 of 4 :   Find (f−g)(2)(f−g)(2).

The cost C in dollars of manufacturing x bicycles at a production plant is given by the function shown below. C(x) = 4x´ – 400x + 22,500 a. Find the number of bicycles that must be manufactured to minimize the cost. b. Find the minimum cost. ...