Determine Vertex from Vertex Form of a Quadratic

What does the k term tell you?

• up.

• down.

• up/down, y-value in the vertex

• nothing

Identify the a, h, and k terms in the following equation: 2\left(x+4\right)^2-1

• a=2, h=-4, k=-1

• a=-2, h=4, k=1

• a=2, h=4, k=1

• a=-2, h=-4, k=1

Determine the vertex from the following equation: -3\left(x-4\right)^2+1

• Vertex: (4,1)

• Vertex: (-4, -1)

• Vertex: (4, -1)

• Vertex: (-4, 1)

• Vertex: (1,-1)

• Vertex: (-1, 1)

• Vertex: (-1, -1)

• Vertex: (1, 1)

• Factored Form

• Standard Form

• Vertex Form

What does vertex form tells us about a quadratic function?

• the y-intercept

• the x-intercepts

• the vertex

• the increasing interval

What is the vertex form of a quadratic equation?

• f(x)=x

• f(x)=x²

• f(x)=ax²+bx+c

• f(x)=a(x-h)²+k

Determine the vertex from the following equation: \frac{1}{2}\left(x+4\right)^2+1

• Vertex: (-4, 1)

• Vertex: (-4, -1)

• Vertex: (4, 1)

• Vertex: (4, -1)

• Factored Form

• Standard Form

• Vertex Form