Solving Systems of Equations

If a system of equations has no solution, what does the graph look like? 

• intersecting lines

• parallel lines

• skew lines

• intersecting lines

Tags

CCSS.8.EE.C.8A

What is the solution?

• One Solution

• No solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8A

What is the solution?

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)

Tags

CCSS.8.EE.C.8B

How many solutions does this system have?

y = 2x + 1

y = 4x - 1

• One Solution

• No Solution

• Infinite Solutions

Tags

CCSS.8.EE.C.8B

How many solutions does this system have?

y=2x + 4

y=2x -4

• One Solution

• No Solution

• Infinite Solutions

Tags

CCSS.8.EE.C.8B

2x + y = -3
x - 2y = -4

• (-2,1)

• (1,-2)

• (2,1)

• (1,2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7x+4y =12 
x + 2y = -4

• (-4,4)

• (4,4)

• (4,-4)

• (-4,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7x - 2y = 6
x - 2y = -6

• (2,4)

• (3,-2)

• (1,2)

• (-2,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

x-4y = 16
5x + 4y = 8

• (4,-3)

• (-3,4)

• (4,3)

• (3,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

5x - 2y = 6
x - 2y = -2

• (2,2)

• (2,1)

• (1,2)

• (-2,-2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6