22 - 23 Quiz - Substitution / Elimination

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

Is the point (-2, 4) a solution to the system of equations shown below?

x – y = 6

2x + y = 0

• yes

• no

What is the solution to the system of equations shown below?

y = 2x + 6

y = -x – 3

• (0, -3)

• (-3, 0)

• (6, 0)

• (0, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution of the system of equations shown below?

y = -4x + 1

4x + y = 1

• (1, 4)

• No Solution

• Infinite Solutions

• (-1, 4)

Tags

CCSS.8.EE.C.8B

What is the solution to the equations?

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

Tags

CCSS.8.EE.C.7A

Solve:
y=8x+1
y=6x+3

• (1, 9)
• (4, 14)
• (0, 1)
• (2, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system by using elimination:

-2x - 5y = -15

x + 8y = 13

• (5, 1)

• (1, 5)

• (5, -1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following systems of equations using substitution:

y = 3 - x

3y + x = 5

• No solution

• (1, 2)

• (3, 0)

• (2, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6