ACC 10.6 Solving Systems all 3 ways

Is (-3, 1) a solution to the system:

x + y = -2

2x - 2y = -8

• Yes, (-3, 1) is the solution

• No, (-3, 1) is the solution

Tags

CCSS.HSA.REI.C.6

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.3

This system has _____ solutions

• 0
• 1
• 2
• Infinitely many

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Solve using substitution:

y = -6x + 5

-2x + y = 5

• (-3, -6)

• (-6, 3)

• (0, 5)

• (-3, 5)

Tags

CCSS.HSA.REI.C.6

Solve by elimination 
-2x + 6y = 16
-4x  - 3y = 2

• (2,2)
• (-2, -2) 
• (-2,2)
• (2,1)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Solve by graphing.

4x + 8y = 20

-4x + 2y = -30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)