Elimination Quiz

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

• (-7,1)
• (2,-5)
• (-2,5)
• (7,-1)

 Solve using elimination.
 7x + 2y = 24
  8x + 2y = 30

• (6,-9)
• (-9,6)
• No solution
• Infinite number of solutions

Solve using elimination. 
−4x − 4y = 0
  8x + 8y = 0 

• (−6, −4) 
• Infinite number of solutions  
• No solutions
• (6, 4) 

Tags

CCSS.8.EE.C.8B

Solve the system by elimination.
  5x + 8y = -12
3x + 5y = -7

• (1, -10)
• No solution
• (-4, 1)
• (1, 10)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If two lines are parallel, how many solutions do they have?

• 1
• 2
• infinite
• none

The solution (x, y) to a system of equations is the point where they...? 

• Run off the graph
• Don't touch
• Intersect
• Exist

A ________________ is a set of two or more equations that have the same variables.

• solution of a system
• elimination method
• system of equations
• table

What is the solution?
(Hint:  Both lines are graphed over each other)

• No Solution
• (-2,1)
• Infinitely Many Solutions
• Five Solutions