System of Equations Solve Addition

Solve by elimination:
-9x-4y=-20

5x+4y=4

• (-4,4)

• (4,4)

• (4,-4)

• (-4,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What method would you use to solve the following system of equations?

• solve for y

• Substitution, because there is an equation with an isolated variable

• Elimination with addition

• Elimination with multiplication

• elimination with subtraction

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (2, 3) and (2, -3)

• (-2, 3) and (-2, -3)

• (2, 3), (2, -3), (-2, 3) and (-2, -3)

• No solution! It is an Inconsistent System

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• No solution! It is an Inconsistent System.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (1, 2)

• (2, 1)

• (1, 2) and (2, 1)

• No solution! It is an Inconsistent System.

Tags

CCSS.HSA.REI.C.7

• (3, 0)

• (1, -4)

• (3, 0) and (1, -4)

• No solution! It is an Inconsistent System

Tags

CCSS.HSA.REI.C.7

Create the System of Nonlinear Equations that fits the scenario:

Find two numbers whose sum is 9 and whose product is -36.

• x+y = 9

  xy = -36

• x+y = 9

  x/y = -36

• x-y = 9

  xy = -36

• x-y = 9

  x/y = -36

Tags

CCSS.8.EE.C.8C

Create the System of Nonlinear Equations that fits the scenario:

The sum of two numbers is 4 and the difference of their squares is 64.

• x+y = 4
  (x-y)^2 = 64

• x+y = 4
  x^2 - y^2 = 64

• x-y = 4
  (x-y)^2 = 64

• x-y = 4
  x^2-y^2 = 64

Tags

CCSS.HSA.REI.C.7

• (0,0)

• (1,1)

• (-1, -1)

• All of the Above

• No Solution! It is an Inconsistent System

Tags

CCSS.HSA.REI.C.7

Solve:

x = -3y - 17

2x + 3y = -7

• (1, -20)

• (10, 0)

• (-5, -2)

• (10 , -9)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6