1. Solve the system of two linear equations.
−3x − 4y = −23.
3x − 5y = 5.
Responses:
A. (5, −2).
B. (−5, −2).
C. (−5, 2).
D. (5, 2).
2. How many solutions does the system of equations have?
8x − 6y = 48
8x + 6y = 48
Responses:
A. Infinite.
B. One.
C. Two.
D. None.
3. Solve the system of two equations using elimination with multiplication.
4x − 6y = −48
−2x + 4y = 30
Responses:
A. (−33,−9).
B. (3, 9).
C. (−3, 6).
D. (−21,−6).
4. Solve the system of equations.
3x − 4y = 40
5x − 5y = 55
Responses:
A. (4,−7).
B. (14, 3).
C. (8,−3).
D. (18, 7).
5. How many solutions does the system have?
12x − 15y = 18.
4x − 5y = 6.
Responses:
A. One solution.
B. Infinitely many solutions.
C. Two solutions.
D. No solution.
Answer questions with: A or B or C or D.
1. A. (5, −2).
2. D. None.
3. A. (−33,−9).
4. B. (14, 3).
5. D. No solution.