Notions of Quadratics

Areas

squares, rectangles, circles, ....

Units

Multiplying Lines

If both increasing or both decreasing (slopes same sign), then faces up. If mixed, then faces down.

Squaring x

Raising x to the second power

Simplifying line multiplication using distributive to standard form.

Parabolas

Geometric perspective. Mention other conic sections.

Approximations

Three points to determine a quadratic, approximates hills and valleys

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