Systems of Equations Desmos

4x+8y=20

-4x+2y=-30

Which method would be easiest way to solve this system of equations?

• graphing

• linear programming

• substitution

• elimination

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3x + 2y = 16

7x + y = 19

If I had to solve using substitution, which variable should I solve for?

• y in the first equation

• y in the second equation

• x in the first equation

• x in the second equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which method would be the easiest to use to solve this system of equations?

• substitution

• elimination

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using elimination:

6x - 4y = 28

2x + 2y = 6,

• x = 1, y = 2

• x = 2, y = 1

• x = -4, y = 1

• x = 4, y = -1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

You graph using Desmos.com and get the following graph. Which are vertices of the feasible region?

• (0, 0), (0, 6),

  (6, 2), (8, 0)

• (0, 0), (6, 0),

  (2, 6), (0, 8)

Tags

CCSS.HSA.REI.D.12

Solve the system of equations.

-2x+6y= 16

-4x-3y= 2

• (2,2)

• (-2, -2)

• (-2,2)

• (2,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations to find the value of z.

• 4

• -4

• 2

• -2

Solve the system.

• (5, -6, 3)

• (2, 3, -1)

• (-4, 2, 5)

• No Solution

Solve the system and find the value of x - z.

• -4

• 8

• 14

• -14