Finding Vertex from Factored Form

What is the maximum/minimum of a parabola called?

• vertex

• point

• top

• bottom

What is the equation of the graph?

• y=(x+4)(x+2)

• y=(x-4)(x-6)

• y=x²+4x+5

• 2(x+5)²-6

Tags

CCSS.HSF-IF.C.7A

What is the equation to the graph?

• y=(x-5)(x-4)

• y=(x+5)(x+4)

• y=x²-20x-9

• y=(x-5)²

Tags

CCSS.HSF-IF.C.7A

Find the vertex: y = -(x+3)(x-2)

• (0.5, -5)

• (-0.5, 5)

• (-0.5, -5)

• (0.5, 5)

To find the vertex from Factored Form: (reorder the steps)

• Use the midpoint formula on the roots

• Solve & you have the y-value.

• Plug this value into the original equation.

• Solve & you have the x-value.

Find the vertex of

f(x) = -(x+6)(x-2)

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

To find the vertex from Factored Form: (reorder the steps)

• Plug this value into the original equation.

• Solve & you have the x-value.

• Use the midpoint formula on the roots

• Solve & you have the y-value.

Find the vertex:

y = ¼(x + 2)(x - 6)

• (2, -4)

• (2, 4)

• (-2, 4)

• (-2, -4)

What is the vertex of the function?

• (-3, -16)

• (3, 20)

• (-6, -7)

• (0, -7)

Find the vertex:

y = x(x - 4)

• (2, -4)

• (2, 4)

• (-2, -4)

• (-2, 4)