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Transformations of quadratic functions

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Grade 11 Pre-Calculus Mathematics (30S)
Develop algebraic and graphical reasoning through the study of relations
11. Analyze quadratic functions of the form y = a(x - p)² + q and determine characteristics of the corresponding graph
11.2 Transformations of quadratic functions

Transformations of quadratic functions


What You'll Learn

Identify how coefficients and constants transform the parent function y = x²
Apply reflection transformations across the x-axis using negative coefficients
Perform vertical stretches and compressions by multiplying y-values
Execute horizontal and vertical translations by modifying x and y terms
Determine the vertex of a transformed parabola from its equation
Combine multiple transformations to graph complex quadratic functions

What You'll Practice

1

Graphing reflections of parabolas across the x-axis

2

Applying vertical expansions and compressions to quadratic graphs

3

Translating parabolas horizontally and vertically using shifts

4

Combining multiple transformations in a single equation

5

Finding vertex coordinates from transformed quadratic equations

Why This Matters

Transforming quadratic functions is essential for modeling real-world phenomena like projectile motion, profit optimization, and engineering designs. Mastering these transformations gives you the power to quickly sketch and analyze parabolas without plotting dozens of points, a skill you'll use throughout algebra, precalculus, and calculus.

Before You Start — Make Sure You Can:

This Unit Includes

3 Video lessons
Practice exercises

Skills

Quadratic Functions
Transformations
Vertex Form
Reflections
Translations
Vertical Stretch
Horizontal Shift
Graphing Parabolas
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