Solving Systems of Inequalities and Equations

How many solutions will this system have? 

• No solution

• One Solution

• I Don't Know

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8A

Solve by elimination: Remember you are looking for Matching Opposites/You are always adding! PAY ATTENTION TO YOUR SIGNS. Hint: multiply the bottom one by "-1"

9x - 4y = 7

x - 4y = -17

• (-1,5)

• (-7,5)

• (7,5)

• (3,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Using elimination: WHAT IS THE "X" VALUE OF THE SYSTEM?

Remember you are looking for Matching Opposites/You are always adding! Hint: You will have to multiply on this one in order to eliminate.

4x - 6y = -6

-2x - 12y = -12

• x = 0

• y = 1

• x = -1

• y = 0

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Select the ALL the systems that have the same solution as the following system below.

-6x + 5y=1

6x + 4y=-10

• -12x + 10y = 2

  6x + 4y = -10

• -30x -30y = 30

  40x + 5y = 10

• 6x + 6y = -1

  6x + 4y = 10

• -6x + 5y = 1

  18x + 12y = -30

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which system of inequalities is shown?

• y ≥ -x - 1

  y ≤ x + 4

• y < -x - 1

  y ≥ x + 4

• y > -x - 1

  y ≥ x + 4

• y > x - 1

  y ≥ x + 3

Tags

CCSS.HSA.REI.D.12

Is the ordered pair (2, 0) a solution to the following system of inequalities below?

y > -2x + 1

y ≥ 3x + 3

• YES

• NO

Is (-3, -2) a solution to this system?

• Yes

• No

Solve the system.

• (4, -3)

• (-4, 3)

• (-3, 4)

• (3, -4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system?

• (-1, 4)

• (3, 0)

• (4, 1)

• (0, -1)

Tags

CCSS.8.EE.C.8B

What is the solution to the system?

• (1.3, 0)

• (3, 0)

• (2, -1)

• (3, -3)

Tags

CCSS.8.EE.C.8B