A2.F.IF.B.5.a

Rewrite quadratic functions to show zeros, extreme values, and symmetry of the graph, and interpret these in terms of a real-world context.

Example Problems
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Khan Academy Resources
Solving quadratics by completing the squareCompleting the square reviewCompleting the square (intermediate)Completing the squareCompleting the square (intro)Worked example: completing the square (leading coefficient ≠ 1)Completing the squareWorked example: Completing the square (intro)Solving quadratics by completing the square: no solutionFinding the vertex of a parabola in standard formComparing maximum points of quadratic functionsWorked examples: Forms & features of quadratic functionsWorked example: Rewriting & solving equations by completing the squareWorked example: Rewriting expressions by completing the square
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