Writing Quadratic Equations in Vertex Form

Writing Quadratic Equations Form A Vertex & Point:

1. Identify the ​ (a)   of the quadratic & label as ​ (b)   &​ (c)   .

• vertex
• h
• k
• point
• x
• y

Writing Quadratic Equations Form A Vertex & Point:

2. Identify another​ (a)   on the parabola & label as ​ (b)   &​ (c)   .

• point
• x
• y
• vertex
• h
• k

Writing Quadratic Equations Form A Vertex & Point:

3. ​ ​ (a)   the vertex (h, k) and the point (x, y) into the vertex form equation y = a(x-h)² + k and solve for ​ (b)   .

• Substitute
• a
• x
• y
• Point

Writing Quadratic Equations Form A Vertex & Point:

4. You now have everything you need to write the equation in ___________ form (a, h, k). Substitute these values into vertex form & convert to standard.