Sketching y = a(x - h)² + k
Completing the square · Vertex and axis · Three worked sketches
Say what a quadratic equation and a parabola are
Complete the square to get y = a(x - h)² + k
Find the vertex, intercepts and axis
Sketch the parabola with a smooth curve
General form: ax² + bx + c = 0, with a not zero
Its graph is a ∪ or ∩ curve called a parabola
The turning point of the parabola is its vertex
Al-Khwarizmi, father of algebra, first set these out in graphs
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