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

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)

Tags

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

y = -2/3x + 2
y = 3/2x + 9
These lines are...

• Parallel
• Perpendicular
• Neither

Tags

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

Solve the system:
2x + 3y = -2
3x - 2y = 23

• (5, -4)
• (-4, 5)
• (-5, 4)
• infinite solutions

Tags

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

What is the solution of the two linear equations shown?

• (2,2)
• (0,0)
• (1,2)
• None of these

Tags

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

Which system of equations represents the graph?

• y = -3/5x - 3
  y = 3x - 3
• y = - 5/3 x + 3
  x - 3y = 9

Tags

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

Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes.  How long does it take her to do a haircut?
3x + 2y = 315
2x + 4y = 450

• 45 minutes
• 90 minutes
  2x + 4y = 315
• 60 minutes
  3x + 4y = 450
• 30 minutes

Tags

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

What is the solution to this system?

• (-2, -2)
• (2, -2)
• (-2,2)
• (2, 2)

Tags

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

-6x + y = 2
6x + y = 2
These lines are...

• Parallel
• Perpendicular
• Neither

Tags

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

A pizza buffet restaurant has one price for adults and other price for children under age twelve. Tim's family has two adults and three children. Their bill was $40.50. Amy's family has three adults and one child. Their bill was $38. Which system of equations could be used to determine the buffet price for an adult and the price for a child?

• a+ c = 40.50

  a + c= 38

• 2a + 3c = 40.50

  3a + c = 38

• 2a + c = 40.50

  3a + 3c = 38

• 2a + 3c = 38

  3a + c = 40.50

Tags

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

The first step in solving using the substitution method is __________.

• get x by itself

• get y by itself

• get either variable by itself in one equation

• add the equations together

Tags

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