Solving Systems of Equations in Three Variables and Two Variables

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Tags

CCSS.8.EE.C.8B

Solve the system using the best method:

x + y = 19

y = 3x - 1

• (14, 5)

• (11, 8)

• (5, 14)

• (8, 11)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8A

The solution (x, y) to a system of equations is the point where the lines ...?

• Run off the graph

• Don't touch

• Intersect

• Make a right angle

Tags

CCSS.8.EE.C.8B

Solve using the best method.

2x + 3y = 20

-2x + y = 4

• ( 4, 2 )

• ( 6,4)

• (1,6)

• ( 4,6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system.

• (3, -1)

• (-1, -3)

• (-1, -1)

• (-1, 3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The solution to the system is

• (-2, -8)
• (-8, -2)
• (2, -8)
• No solution

Tags

CCSS.8.EE.C.8B

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

Tags

CCSS.8.EE.C.8B

If a system of equations has NO SOLUTION, what does the graph look like? 

• intersecting lines
• parallel lines
• two lines crossing

Tags

CCSS.8.EE.C.8A

What type of lines have one solution to a system of equations?

• Parallel Lines
• Coinciding Lines
• Intersecting Lines

Tags

CCSS.8.EE.C.8A