Solving System of Equations by Graphing

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

If a system of linear equations has infinitely many solutions, what does this mean about the two lines? 

• Intersecting lines

• Identical line

• Parallel lines

Tags

CCSS.8.EE.C.8A

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.8A

Solve by graphing.
y = 2x + 1
y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Tags

CCSS.8.EE.C.8B

-4x-2y=-12
      4x+8y=-24

• (6,-6)

• (-6,6)

• (6,6)

• (-6,-6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations:

y=2x

x + y = 9

• (6, 3)

• (3, 6)

• (-3, -6)

• no solution

Tags

CCSS.HSA.REI.C.7

Solve this system of equation

y = 8x + 1

y = 6x + 3

• (1, 9)

• (4, 14)

• (0, 1)

• (2, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Where do these lines intersect?
x-y=11
2x+y=19

• (10,-1)

• (-1,10)

• (3,-4)

• (6,7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system by graphing. What is the solution?

• Infinite number of solutions

• (3, 3)

• (3, -3)

• (-3, 3)

Tags

CCSS.8.EE.C.8B

Solve this system of equations by graphing. 
y = 1/2x + 2
y = -3x + 9

• (2,3)

• (-2,-3)

• (3, 2)

• (-3,2)

Tags

CCSS.8.EE.C.8B