Checking Solutions to Linear Equations

What is the solution to this system?
y = 2x + 1
y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by graphing.
y = 2x + 1
y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Tags

CCSS.8.EE.C.8B

Solve this system of equations by graphing.

y = 1/2x + 2

y = -3x + 9

• (2, 3)

• (-2, -3)

• (3, 2)

• (-3, 2)

Tags

CCSS.8.EE.C.8B

If a system of linear equations has infinitely many solutions, what does this mean about the two lines? 

• Intersecting lines

• Same line

• Parallel lines

Tags

CCSS.8.EE.C.8A

Solve the system by graphing:
y = 6x - 4
y = -x + 3

• (1, 2)

• (2, 1)

• (4, 5)

• (2, 4)

Tags

CCSS.8.EE.C.8B

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

• intersecting lines

• parallel lines

• skew lines

• intersecting lines

Tags

CCSS.8.EE.C.8A

Solve by Graphing: What is the solution to this system?

y = 2/3x - 2

y = -x + 3

• (0,3)

• (0,-3)

• (3,0)

• (-3,0)

Tags

CCSS.8.EE.C.8B

To pay your monthly bills, you can either open a checking account or use an online banking service. A local bank charges $3 per month and $0.40 per check, while an online services charges a flat fee of $9 per month.
Write a system of linear equations to model the cost c of each service for b bills that you need to pay monthly.

Tags

CCSS.8.EE.C.8C

• No Solution

• One Solution

• Infinite Solutions

Tags

CCSS.8.EE.C.7A

• No Solution

• One Solution

• Infinite Solutions

Tags

CCSS.8.EE.C.7A