CCSS.Math.Content.8.EE.C.8

David is running a concession stand at a soccer game. He sells nachos and sodas. Nachos cost $1.50 each and sodas cost $0.50 each. At the end of the game, David made a total of $78.50 and sold a total of 87 nachos and sodas combined. Which system of equations represents this situation?

• 1.5x+0.5y=78.5
  x+y=87
• 1.5x+0.5y=78.5
  1.5x+0.5y=87
• x+y=78.5
  1.5x+0.5y=87
• x+y=78.5
  x+y=87

Tags

CCSS.Math.Content.8.EE.C.8

Which ordered pair is the solution of the system graphed below?

• (2, 0)
• (8, 0)
• (-3, 5)
• (3, 8)

Tags

CCSS.Math.Content.8.EE.C.8

x -2y = -2
3x - 2y = 6

• (4,3)
• (-3,4)
• (-2,-3)
• (-3,-4)

Tags

CCSS.Math.Content.8.EE.C.8

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Tags

CCSS.Math.Content.8.EE.C.8

y = 3x +2
y = 3x - 3
These lines are...

• Parallel
• Perpendicular
• Neither
• The same line

Tags

CCSS.Math.Content.8.EE.C.8

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines
• the same line 
• Intersecting lines

Tags

CCSS.Math.Content.8.EE.C.8

Given the equation y = 7x + 11, write another equation that will result in “No Solution” when both equations are graphed.

• y = -7x
• y = 7
• y = 7x + 2

Tags

CCSS.Math.Content.8.EE.C.8

y = 0.5x +5
y = 1/2x - 7
These lines are...

• Parallel
• Perpendicular
• Neither
• The same line

Tags

CCSS.Math.Content.8.EE.C.8

What is the solution to this system?
y= 4x + 3
2x - 3y = 21

• (3,-9)
• (-3,-9)
• (-3,9)
• (0,1)

Tags

CCSS.Math.Content.8.EE.C.8

What are systems of linear equations?

• a set of two or more linear equations in the same variables
• a polynomial with three terms
• set of two or more linear inequalities in the same variables

Tags

CCSS.Math.Content.8.EE.C.8