Systems of Equations Unit Review

Is the systems: y = −3x + 4 and y = 3x − 2 the correct equations for the graph?

• yes

• no

Tags

CCSS.8.EE.C.8B

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

Tags

CCSS.8.EE.C.8B

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Tags

CCSS.8.EE.C.8B

How many solutions?

• One Solution
• No solution
• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

Which algebraic method would you use to solve the following system of equations: 
7x + 2y = 10 
-7x + y = -16 
hint : opposite coefficients... (+7x & -7x)

• Elimination 
• Substitution 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system of equations algebraically using elimination

7x + 2y = 10 
-7x + y = -16 

• (2, -2)
• (-2 ,2) 
• (1,4)
• (4,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using substitution: 
x = 12 y - 14
3y + 2x = 26

• (10,2)
• (2,10) 
• (5,15)
• (15,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which variable will be eliminated when you subtract the two equations?

• x

• y

• neither

• both

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

To solve this system using elimination, you would need to ________ the equations

• Add

• Subtract

• Multiply

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6