Matrix Equations

• x=-1
  y=2
  z=-2
• x=2
  y=1
  z=-1
• x=-2
  y=-1
  z=-2
• x=2
  y=2
  z=-1

• x=-3
  y=4
• x=-2
  y=5
• x=3
  y=-4
• x=2
  y=-5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the value of the y-coordinate of the solution to the system of equations 
x - 2y = 1
x + 4y = 7 

• 1
• -1
• 3
• 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve :
x - y = - 6
x + y = 8

• (2, 3)
• no solution
• (1, 7)
• (8, 7)

Tags

CCSS.8.EE.C.8B

Solve for x and y
3x + 2y = 16
7x  = 19 - y 

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6