Forms of Quadratic Functions

If given the equation
y = 3(x + 5)² - 4,
what is the vertex of the parabola?

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)

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

• (5, 2); opens up
• (5, 2); opens down
• (-5, 2); opens up
• (-5, 2); opens down

What is the vertex for the parabola represented by the equation
y = 2(x + 3)² - 8?

• (3, 8)
• (3, -8)
• (-3, 8)
• (-3, -8)

• y = (x+8)(x+6)

• y = (x+8)(x-6)

• y = (x-6)(x-8)

• y = (x-8)(x+6)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

• A.O.S.: x = -3

  Vertex: (-3, -5)

• A.O.S.: x = 3

  Vertex: (3, -5)

• A.O.S.: x = -3

  Vertex: (-3, 5)

• A.O.S.: x = 3

  Vertex: (3, 5)

• A.O.S.: x = -5

  Vertex: (-5, -1)

• A.O.S.: x = 5

  Vertex: (5, -1)

• A.O.S.: x = -5

  Vertex: (-5, -2)

• A.O.S.: x = 5

  Vertex: (5, -2)