quiz on solving systems of equations

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)
• (6,0)
• (-6,0)
• (7,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
4x+4y=4

3x+4y=10

• (7,-6)
• (-6,7)
• (6,7)
• (7,6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system of equations?
4x + y = 6
x - 2y = 6

• (2,-2)
• (1,2)
• ( 1/2 , 4 )
• (-2,2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

14x - 9y = 1
-7x + 3y = 16

• (10, -11)
• (-10, 11)
• (-11, 11)
• (-7, -11)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by substitution method
y = x + 24
y = -7x

• -3,21
• 3,21
• 2,21
• -2,0

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by graphing
y = -x - 10
y = 4x

• 2,8
• -1,-8
• -2,-8
• 0,8

Tags

CCSS.8.EE.C.8B

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

• (-2, -1)
• (1, -2)
• (-2, 1)
• (-1, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution. 
3x − 2y = 7
y = 2x − 7 

• No solution  
• (7, 7)  
• (−7, −7)  
• (−7, −3)  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution. 
y = 2x − 11
2x − 8y = 4 

• (6, 1)
  
• (6, −1)
  
• (6, −4)
  
• Infinite number of solutions  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Tags

CCSS.8.EE.C.8A