Completing the Square

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Objective

I can rewrite a quadratic expression in vertex form by completing the square.

Part 1 of 3

Warm-up video

Khan Academy · 6:14Vetted channel

We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Explain the general form of a quadratic equation in vertex form and how the vertex can be identified from this form.

2

Rewrite the quadratic equation y = x² + 6x + 5 in vertex form by completing the square.

Part 3 of 3

Exit ticket

Quick comprehension check

Rewrite the quadratic expression y = x² + 4x - 3 in vertex form. Rewrite the quadratic expression y = x² - 6x + 11 in vertex form.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

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  • Student Handout

    Printable worksheet

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