| |
| |
1. |
Solve the system of equations x + 2 = 0 and y2 = 36 - x2 algebraically. Round to the nearest tenth. |
| |
|
A. |
(-2, 5.7) |
B. |
(-2, -5.7) |
| |
|
C. |
(-2, ±5.7) |
D. |
(±2, 5.7) |
| |
|
Hint |
|
| |
2. |
Solve the system of equations algebraically.
x - y + 2 = 0
x2 + y2 = 10 |
| |
|
A. |
(4, 6) |
B. |
(1, 3) |
| |
|
C. |
(-3, -1), (1, 3) |
D. |
(-1, -3), (3, 1) |
| |
|
Hint |
|
| |
3. |
Graph the system of inequalities  and  . |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
4. |
Solve the system of equations algebraically, 4x + 4y = 4 and
x2 = y+ 5. |
| |
|
A. |
no solution |
B. |
(-3, 4), (2, -1) |
| |
|
C. |
(-3, -1), (2, 4) |
D. |
(3, -4), (-2, 1) |
| |
|
Hint |
|
| |
5. |
Which set of inequalities represents the graph? |
| |
|
 |
| |
|
A. |
x2 + y2  3;
y x + 1 |
B. |
x2 + y2 9;
y  x + 1 |
| |
|
C. |
x2 + y2 9;
y x + 1 |
D. |
x2 + y2 3;
x y + 1 |
| |
|
Hint |
|
|