Unit 3 Algebra 2 Retest

Which graph correctly displays the solution to the system of equations shown.

• 
• 
• 

Tags

CCSS.8.EE.C.8B

Solve by elimination
-12x-4y= -8 
  -6x-2y= -4

• no solution 
• (0,0)
• infinite solutions 
• (4,0)

Tags

CCSS.8.EE.C.8B

Solve the system of Equation

5x + y = 9

10x − 7y = −18

• (-4,-1)

• (-1,-4)

• (4,1)

• (1, 4)

There are 15 animals in a barn.  These animals are horses and chickens.  There are 44 legs in all.  Which system of equations represents the situation?

• x + y = 15
  4x + 2y = 44
• 4x + 2y = 15
  x + y = 44
• x = 2y + 44
  4x = y + 15
• 2x - 4y = 44
  x - y = 15

Tags

CCSS.HSA.CED.A.3

An MLB stadium sells three types of tickets. Reserved tickets are sold for $20 each, field level tickets are sold for $50 each, and box seat tickets are sold for $100 each. You purchase 10 total tickets for $370. You have twice as many reserved tickets as field level tickets. Set up the system using the variables

x: reserved

y: field-level

z: box seats

• $x+y+z=370$
  $20x+50y+z=100$
  $2x=y$
  

• 
  

  $x+y+z=10$
  $20x+50y+100z=370$
  $x=2y$
  

• $2x+y+z=370$
  $20x+50y+100z=2$
  $2z=x$
  

Tags

CCSS.HSA.CED.A.3

Solve the system of equations: 

• ( -2, 4, 3)
• ( 2, 1, 6)
• No solution
• infinite # of solutions

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

Solve the system. 

• (5, -6, 3)
• (2, 3, -1)
• (-4, 2, 5)
• No Solution

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

Which x values would make the ordered pair ( x, 1 ) solution to the system of equation?

• [-1, 3]

• [3, 0]

• [-2, 2]

• [4, 1]

Solve the system of inequalities. The solution set is shown by the darkest blue shading.

• 
• 
• 
• 

Luka and Dana are making cookies for the Westland Pantry. They only have up to 6 hours to bake! They can bake 32 chocolate chip cookies in an hour (x), and 20 snickerdoodle cookies in an hour (y). They need to make at least 150 cookies. Which inequalities represent the situation?

• x + y ≥ 6
  32x + 20y ≤ 150

• x + y ≥ 632
  x + 20y ≥ 150

• x + y ≤ 6
  32x + 20y ≤ 150

• x + y ≤ 6
  32x + 20y ≥ 150

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.CED.A.3