Systems of Equations

What is the solution?

• (4, 3)

• (3, 4)

• (-4, 3)

• No solution

Tags

CCSS.8.EE.C.8B

What is the solution?

• (6, 3)
• (3, 6)
• (-6, 3)
• No solution

Solve the following system by graphing.  What is the solution?

• Infinite number of solutions
• (3, 3)
• (3, -3)
• (-3, 3)

Solve the following system by graphing.  What is the solution?

• (-4, 2)
• (4, 2)
• (2, -4)
• (2, 4)

Which choice shows substitution correctly?

y = 2x + 3

3x + 2y = 20

• 3x + (2x + 3) = 20

• 3x + 2y(2x + 3) = 20

• 3x + 2 (2x + 3) = 20

• y + 2x + 3 = 20

Solve the system by substitution.

y = 2x + 1

y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Solve the system by substitution.

y = x + 5

4x + y = 20

• (3,8)

• (8,3)

• (0,2)

• (2,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system using elimination.

−4x − 4y = 0

4x + 4y = 0

• (−6, −4)

• Infinite number of solutions

• (−6, 10)

• (6, 4)

Solve the system using elimination.

−8x − 10y = 20

−8x − 6y = −4

• Infinite number of solutions

• (6, 5)

• (−6, −5)

• (5, −6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Check if the point (3, -4) is a solution to the system of equations.

5x - y = 19

x - 4y = 19

• Yes, it is a solution.

• No, it is not a solution.