1. Suppose C and D represent two different school populations where C > D and C and D must be greater than 0. Which of the following expressions is the largest? Explain why. Show all work necessary.

1. (C + D)²
2. 2(C + D)
3. C² + D²
4. C² D²

2. Two students, Jennifer and Jamal, factored the trinomial 6x² 3x 9. Jamal factored it as 3(2x 3)(x + 1) and Jennifer factored it as (2x 3)(3x + 3). Indicate which student factored the trinomial completely and which student did not, and explain why. (10 points)

3.The functions f(x) = -(x 1)² + 5 and g(x) = (x + 2)² 3 have been rewritten using the completing-the-square method. Is the vertex for each function a minimum or a maximum? Explain your reasoning for each function. (10 points)