| |
| |
1. |
Which of the following is a graph of the inequalities
l + g > 100 and l > 70? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
2. |
Solve the system of inequalities by graphing. |
| |
|
 |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
3. |
Solve the system of inequalities by graphing.
x + y  4
2x - y < 4
y  0 |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
4. |
Name the coordinates of the vertices of the polygonal convex set. |
| |
|
 |
| |
|
A. |
(-4,-1), (-4,3), (-2,4), (4,2) |
B. |
(-4,-1), (-4,3), (-2,4), (4,-2) |
| |
|
C. |
(-4,-1), (-4,3), (-2,-4), (4,-2) |
D. |
(-4,-1), (-4,6), (-2,4), (4,-2) |
| |
|
Hint |
|
| |
5. |
Find the minimum value of f(x, y) =  x - 4y for the system of inequalities.
2x + y 3
2x + y -2
y 4
x < 1 |
| |
|
A. |
-17 |
B. |
16 |
| |
|
C. |
-3 |
D. |
-16 |
| |
|
Hint |
|
|
|