22-23 Requiz - Substitution / Elimination

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

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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Is the ordered pair (10, 2) a solution to the system of equations shown?

x - y = 8

2x - y = 18

• no

• yes

Tags

CCSS.HSA.REI.C.6

Solve the system of equations below.

y = 2x - 4

-6x + 3y = -12

• Infinite Solutions

• No Solution

• (4, -4)

• (6, -2)

Tags

CCSS.8.EE.C.8B

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this equation?

• one solution
• no solution
• infinite solutions
• none of these

Tags

CCSS.8.EE.C.7A

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

• 1
• 2
• infinite
• none

Tags

CCSS.8.EE.C.8B

Which graph represents a system of equations with infinite solutions?

• 
• 
• 
• 

Tags

CCSS.8.EE.C.8B

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines
• the same line 
• Intersecting lines

Tags

CCSS.8.EE.C.8A

Solve using elimination.

4x + 8y = 20

-4x + 2y = -30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Now, let's find the solution to the system.

2x + 3y = 12

4x - 7y = - 54

• (-3, 2)

• (-3, -2)

• (6, -3)

• (-3, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6