Linear Systems of Equations

What is the solution?

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

Tags

CCSS.8.EE.C.8A

How many solutions does this system of equations have?

• One Solution
• No solution
• Infinitely Many Solutions
• Two Solutions

Tags

CCSS.8.EE.C.8B

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

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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 substitution.
x - 2y = 2
3x + 4y = 3

• (1.4, -0.3)
• (3.1, 5)
• (-2.5, 3.5)
• (6.9, 1.02)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which of the following are ways to solve systems of equations? 

• Graphing
• Substitution
• Elimination
• All of the above

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If you are solving by using the transitive property, what is the equation you are going to solve?

• -2x-7=3x+3

• y=3(-2x-7)+3

• y=-2(3x+3)-7

• y=x-4

If you wanted to use elimination to "eliminate the x's", and you plan on subtracting the two equations, what should the first equation be changed to?

• 4x-4y=-28

• 3x-3y=-21

• 4x-y=-7

• x+(3/4)y=-5.25

If you are using the substitution method, which equation would be a viable result?

• 2x-4(-x+3)=18

• 2x-4(x+3)=18

• 2(-x+3)-4(-x+3)=18

• 2(-y+3)-4(-x+3)=18

If you are using elimination method, what would a viable equation be?

• -27y=-27

• -28y=-27

• -27y=77

• -27y=-77