Semester Review Algebra

y=5(x-2)²+4
what form is this equation in?

• standard
• vertical
• horizontal
• vertex

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up
• (-1, 4); opens down
• (1, 4); opens up
• (1, 4); opens down

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

Match the equation to its description.

• Right 2 and up 2
• Left 2 and up 2
• Right 2 and down 2
• Left 2 and down 2

What is the vertex of
f(x) = 2(x - 5)² + 12

• (-5, -12)
• (5,-12)
• (5, 12)
• (-5, 12)

Solve:

• (5, -1, -4)
• (-5, 1, 4)
• (5, 1, -4)
• (5, 0, -4)

Solve:

• (1, 4, 4)
• (-1, 1, 4)
• (-1, -4, -4)
• (-1, 4, 4)

Solve:
-4x - 5y - z = 18
-2x - 5y - 2z = 12
-2x + 5y + 2z = 4

• (4, 0, -2)
• (-4, 0, -2)
• Many Solutions
• (4, 0, 2)

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.HSA.CED.A.3

Which system of inequality is shown?

• y > -4/5x - 1
  y ≤ 2/3x + 3
• y ≥ -4/5x - 1
  y ≤ 2/3x + 3
• y < -4/5x - 1
   y < 2/3x + 3
• y = -4/5x - 1
  y ≥ 2/3x + 3

Tags

CCSS.HSA.REI.D.12