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.

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
Find:
Find:
Find:
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
Goblins

1-on-1 AI tutoring aligned to A2.F.IF.B.5.a. Instant help for students, real-time insights for teachers.

Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.

Free for teachers, forever →