1. Which of the corner points for the system of linear inequalities graphed below maximizes the objective function P = 5x + 4y ?
1. _______
A. (0, 4) C. (1, 2)
B. (3, 0) D. (2, 0)
2. Find the equation of the line passing through (1, – 7) and (4, 1): 2. _______
A. 8x + 3y = – 13 B. 2x + y = – 5 C. 2x – y = 9 D. 8x – 3y = 29
3. A survey of 15 randomly selected students responded to the question “How many hours a day do you work on MATH 106?” as follows: 3, 2, 2, 4, 6, 5, 2, 5, 1, 4, 2, 3, 2, 3, 4 . Which histogram below accurately reflects the frequency distribution of the 15 students’ responses?
3. ______
HISTOGRAM A HISTOGRAM C
6
4
2
0
1 2 3 4 5 6
6
4
2
0
1 2 3 4 5 6
HISTOGRAM B HISTOGRAM D
8 6 4
2
0
1 2 3 4 5 6
8 6 4
2
0
1 2 3 4 5 6
4. Identify the single row operation that transforms the matrix as shown: 4. ________
A. 0.5
