Unit 3 - Part 2 - Review for M/C #1 - Solving Systems

What does the coordinate point (6, -3) represent? Select all that apply.

• Solution to both equations in the system

• The point where the lines intersect

• The solution to one equation in the system.

• That there are no solutions to the system.

Tags

CCSS.8.EE.C.8A

The following graph is the solution to which of the following systems?

• y = 3x - 5

  y = -x + 3

• y = -2x + 3

  y = 4x -4

• y = -x - 5

  y = 5x + 2

What type of solution is represented in the graph?

• No solutions

• Infinite solutions

• One solution

Tags

CCSS.8.EE.C.8B

Solve the system using substitution method.

y = -6x

y = 6x - 12

• (1, -6)

• (1, 6)

• (-1, -6)

• (-1, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system using substitution method.

x = 6y

6x - 4y = 160

• (30, 5)

• (30, -5)

• (-30, 5)

• (-30, -5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system using elimination method.

10x + 10y =160

-8x + 10y = -20

• (10, 6)

• (10, -6)

• (-10, 6)

• (-10, -6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system using elimination method.

12x - 3y = 129

3x - 9y = 57

• (10, -3)

• (10, 3)

• (-10, 3)

• (-10, -3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system algebraically (use either substitution or elimination).

x = -3y

x - 6y = 54

• (18, -6)

• (18, 6)

• (-18, -6)

• (-18, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which system has infinitely many solutions?

• y = 2x - 3

  -4x + 2y = -6

• y = 3x - 4

  -2x + y = -4

• y = 4x + 3

  y = 2x + 3

Tags

CCSS.8.EE.C.8B

Which system has no solution?

• y = 7x - 2

  -7x + y = 4

• y = 2x - 1

  y = x + 1

• -6x + 2y = 12

  y = 3x + 6

Tags

CCSS.8.EE.C.8B