Solving Systems of Equations - Math Reasoning

4x +  8y = 20
-4x + 2y = -30
Which variable will be eliminated?

• The  x
• The  y
• The  z
• The unknown

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What would be the first step in finding the solution with elimination?

4x + 3y = 1

x - 3y = -11

• cross out the 3y and -3y

• cross out the 4x and x

• change all the signs of the second equation

• add 1 and -11

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Identify the solution to this system of equations.

• (4, -1)
• (-1, 4)
• (-4, 1)
• (-4, -1)

Tags

CCSS.8.EE.C.8B

A ________________ is a set of two or more equations that have the same variables.

• solution of a system
• elimination method
• system of equations
• table

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which variable will be eliminated?

• x

• y

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the slope and the y intercept of the following?
y = 3x - 9

• Slope = 3
  y-int = 9
• slope = 3
  y-int = -9
• slope = -9
  y-int = 3
• slope = 9
  y-int = -3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

A system of two intersecting lines will have how many solutions?

• One Solution
• Two Solutions
• No Solution
• Infinite Solutions

Tags

CCSS.8.EE.C.8B

A system of two parallel lines will have how many solutions?

• One Solution
• Two Solutions
• No Solution
• Infinite Solutions

Tags

CCSS.8.EE.C.8B

A system of two identical (overlapping) lines will have how many solutions?

• One Solution
• Two Solutions
• No Solution
• Infinite Solutions

Tags

CCSS.8.EE.C.8A

This system has _____ solutions

• 0
• 1
• 2
• Infinitely many

Tags

CCSS.8.EE.C.8B