A1-CHAPTER 5 CLASS REVIEW

Is (4, 5) a solution to the system of equations?
4x+y=21
-3x-6y=10

• Yes, it is a solution to the system of equations

• No, it fails to satisfy both equations

Is (5, 6) a solution to the system of equations?
x+2y=16
-3x-5y=-33

• Yes, it is a solution to the system of equations

• No, it fails to satisfy both equations

Is (9, 9) a solution to the system of equations?
x+y=18
x-y=0

• Yes, it is a solution to the system of equations

• No, it fails to satisfy both equations

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

Solve:
y = -1x - 5
4x - 8y = 4

• (-3, -2)
• (5, -7)
• (3, 9)
• (-5, 4)

Solve:
x = -3y - 17
2x + 3y = -7

• (1, -20)
• (3, 0)
• (-5, -2)
• (10 , -9)

What is the solution to this system?
y = x + 5
4x + y = 20

• (3,8)
• (8,3)
• (0,2)
• (2,0)

Solve using elimination. 
 4x + 8y = 20
-4x + 2y = -30

• (-7,1)
• (2,-5)
• (-2,5)
• (7,-1)