1-12 Vertex Form

1-12 Vertex Form

Another Way to Graph Quadratics

Warm Up

What are the intercepts, vertex and axis of symmetry for this parabola?

Open Ended

List the intercepts, vertex and axis of symmetry for this parabola

Notebook: Learning & Habit Target

Learning: I will use vertex form to graph quadratics

Habit: I will use my resources

Success Criteria

• I know how vertex form works

• I can graph a quadratic from vertex form

• I can transform from standard to vertex form in order to graph

• I can transform to factored form to find the intercepts

Notebook: Understanding Vertex Form

a= scale factor, (h,k) is the center, x=h is the axis of symmetry

Notebook: Example

This is the graph for y= (x - 5)² - 4

Notice that (h,k) is (5,-4) and the axis of symmetry is x=5.

What can we do to find the intercepts?

Notebook: Transform x²+10x=-24 to Vertex Form

1) Graph the vertex & line of symmetry

2) Find & graph the zeros

3) Sketch your parabola

Multiple Select

Exit Ticket: Select ALL statements about this quadratic that are true