Quiz: Systems of Equations

Presley graphed a system of equations, and the graph showed two parallel lines. What does this mean?

• The system has one solution.

• The system has no solution.

• The system has infinitely many solutions.

• Presley made an error in her graphing.

Tags

CCSS.8.EE.C.8B

What is true about the graph of a system of equations that has infinitely many solutions?

• The lines will have the same slope but different y-intercepts.

• The lines will have the same slope and the same y-intercepts.

• The lines will have different slopes and different y-intercepts.

• The lines will have different slopes but the same y-intercepts.

Tags

CCSS.8.EE.C.8A

Sloan plans to solve the system shown using elimination. Which describes a first step she could take?

• Multiply the first equation by 5.

• Multiply the second equation by 2.

• Both A and B.

• Neither A nor B.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4. In 4-5, solve the system of equations by graphing. Equations: y = -3x + 1 and y = x - 7

Be sure to write your answer as an ordered pair (x, y)

Tags

CCSS.8.EE.C.8B

Tags

CCSS.8.EE.C.8B

Which of the following is true about the solution to the system of equations below? x + 2y = -2 and -3x – y = 21

• The x-value of the solution is -8.

• The y-value of the solution is -3.

• Both A and B are true.

• Neither A nor B is true.

Tags

CCSS.HSA.REI.C.9

The graph represents the first equation in a system of equations with infinitely many solutions. Which could be the second equation in the system?

• A. x + 2y = 2

• B. 2x – 4y = 4

• C. Both A and B.

• D. Neither A nor B.

Tags

CCSS.8.EE.C.8B

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations using substitution. y = -x – 2 and 3x + 3y = 6

• x = 0, y = -2

• x = 2, y = -4

• Infinitely many solutions

• No Solution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations using elimination. 3x – 2y = 12 and -x + y = -3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6