Systems of Linear Equations Test

Which of the following are methods for solving systems of equations(select all that apply)

• Graphing

• Substitution

• Using a Ruler

• Elimination

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If a system of equations has infinite solutions, what does the graph look like?

• Intercepting/crossing lines

• Parallel Lines

• Perpendicular Lines

• Coinciding/overlaping lines

Tags

CCSS.8.EE.C.8A

Solve the follong system by graphing:

y=2x

y=1/2 x +5

Tags

CCSS.8.EE.C.8B

Solve the system by Substitution:

6x+7y=20

y=2x

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When using substitution too solve this system of equations, what is the result of the first step?

y=x+1

2x+3y=4

• 2x+3(x+1)=4

• 2(x+1)+3y=4

• 2x+3x+1=4

• 2x+3y(x+1)=4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve The following system using Elimination:

-3x+7y=-16

-3x+5y=16

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Write the system of equations that represent the situation and solve using either Substitution or Elimination:

At Freddy's, three steakburgers and two orders of fries cost $18. Two steak burgers and three orders of fries cost $15.75. What is the cost of one steak burger? what is the cost of one order of fries?

Tags

CCSS.8.EE.C.8C