Alg Ch 4 Review B

Which method is best for this system?

-4x-2y=-12

4x+8y=-24

• Substitution

• Elimination

Solve the system.

-4x-2y=-12

4x+8y=-24

• (5,6)

• (6,-6)

• (6,-2)

• (4,-3)

Solve:

x-y=11

2x+y=19

• (10,-1)

• (-1,10)

• (3,-4)

• (6,7)

Solve:

-6x+5y=1

6x+4y=-10

• (1,-1)

• (0,-1)

• (1,1)

• (-1,-1)

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

Which method is best for this system?

y=8x+1

y=6x+3

• Substitution

• Elimination

Solve:
y = 8x + 2
y = -x - 7

• (1, 10)
• (-1, -6)
• (2, 7)
• (9, 9)

What is the solution to this system?
x - y = 6
y= 2x - 5

• (1,3)
• (-1,3)
• (-1,-7)
• (1,-7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (0, 1)