Solving Systems of Linear Equations

Solve this system by graphing.

y = x + 3

y = -4x - 2

• (3, -2)

• (-1, 2)

• (1, 4)

• (5/3, 14/3)

Tags

CCSS.8.EE.C.8B

Solve this system using substitution.

y = 5x - 1

3x - 2y = 9

• (-1, -6)

• (1, 4)

• (-1, 4)

• (-1, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve this system using elimination.

x - 3y = 27

3x - 3y = 39

• (-6, -11)

• (-6, 11)

• (6, 7)

• (6, -7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Determine the type of solution set for this system.

12x - 8y = 18

6x = 4y + 9

• one solution

• infinitely many solutions

• no solution

• cannot be determined

Tags

CCSS.8.EE.C.8B

The sum of two numbers is 86. The larger number is 4 more than the smaller number.

What is the larger number?

• 41

• 42

• 45

• 44

Tags

CCSS.8.EE.C.8C