Quizizz #3

Which method would be best to solve the system below:

 $y=6x-8$  

 $y=-7x+5$  

• Graphing
  

• Substitution

• Elimination

• None of these will work

I want to solve this system using elimination and I've decided to eliminate the letter x. 

What should I multiply the top equation by? 
What should I multiply the bottom equation by? 

 $2x+6y=14$  
 $9x-9y=27$  

• Top: 9     Bottom: 2

• Top:  9    Bottom:  6

• Top:  -9    Bottom:  6

• Top:  -9    Bottom:  2

I would like to solve the system below using Substitution. Which variable should I solve for first and from which equation?

 $-2x-5y=-6$  
 $-3x+6y=0$  

• Top equation - X

• Bottom equation - X

• Top equation - Y

• Bottom equation - Y

Solve the system using any method:

$y=2x-9$
$-x+4y=13$

• (7, 5)

• (-7, -23)

• (5, 1)

• (-5, -19)

If two lines intersect at a single point, the solution to your system of equations will be...

• An ordered pair

• No Solution

• Infinite Solutions

Solve the system using any method:
 $x-6y=4$  
 $-x+6y=5$  

• (0, 4)

• (4, 0)

• No solution

• Infinite Solutions

TRUE or FALSE

The ordered pair (1, 1) is the solution to the system:

  $9x+8y=17$ 
 $-5x-5y=-10$  

You solve a system of equations by graphing.

The image above is of the two graphed lines.

What is the solution?

• (0, 0)

• Infinite Solutions

• (0, 2)

• No Solution

Solve the system using any method:

 $7x+7y=-7$ 
 $-2x-y=5$  

• (4, 13)

• (4, -13)
  

• (-4, -3)

• (-4, 3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The easiest method for solving a system of equations is...

• by Graphing

• by Substitution

• by Elimination

• I love them all!