Solving a system of Linear Equations by Graphing

Which of the following systems of linear equations represent parallel lines?

• y = 2x - 3

  2y = 4x + 6

• y = x + 2

  y = 2x + 1

• y = -3

  x = -4

• y = 2x + 4

  y = 2x + 4

Tags

CCSS.8.EE.C.8B

Which image shows intersecting lines in a system of linear equations?

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Tags

CCSS.8.EE.C.8A

Which image shows parallel lines in a system of linear equations?

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Tags

CCSS.8.EE.C.8A

Which image shows a system of linear equations with one solution?

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Tags

CCSS.8.EE.C.8A

Which image shows a system of linear equations with infinitely many solutions?

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Tags

CCSS.8.EE.C.8A

Which image shows a system of equations with two solutions?

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Tags

CCSS.HSA.REI.C.7

How can you tell if a point is a solution to a system?

• It makes the first equation true.
• The (x,y) coordinates satisfy both equations
• It makes logical sense
• It makes neither equation negative

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Tags

CCSS.8.EE.C.8A

What is the
slope-intercept form
of the equation
-8x+2y=4

• none
• y=2-4x
• y=4x+2
• y=4x-8y

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the solution to this system of equations?
 $y=x-2$  
 $y=-2x+1$  

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6