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Quick Math: Quadratic Equations

For Students 9th - 10th Standards
Complete step-by-step investigation of quadratic functions, allowing the user to input the function. Each step, from solving f(x) = 0 to graphing and finding extreme points, is covered in depth, via links for each step (requires...
Unit Plan
Cuemath

Cuemath: Quadratic Functions

For Students 9th - 10th Standards
Explore the world of quadratic functions in this mini-lesson. Learn about the graphs of quadratic functions, quadratic functions formula, and other interesting facts. You can also try your hand at solving a few interesting practice...
Unit Plan
Texas Education Agency

Texas Gateway: Quadratics: Connecting Roots, Zeros, and X Intercepts

For Students 9th - 10th Standards
Given a quadratic equation, the student will make connections among the solutions (roots) of the quadratic equation, the zeros of their related functions, and the horizontal intercepts (x-intercepts) of the graph of the function.
Unit Plan
Texas Education Agency

Texas Gateway: Domain and Range for Quadratic Functions: Restricted Domain/range

For Students 9th - 10th
Given a situation that can be modeled by a quadratic function or the graph of a quadratic function, the student will determine restrictions as necessary on the domain and range of the function.
Handout
Purple Math

Purplemath: Graphing Quadratic Functions: Introduction

For Students 9th - 10th Standards
The most basic quadratic is y = x2. The general technique for graphing quadratics is the same as for graphing linear equations. The quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear...
Unit Plan
Interactive Mathematics

Interactive Mathematics: Quadratic Equations

For Students 9th - 10th Standards
Using modeling, the world of quadratics is explored. Learn how to solve quadratics using methods of factoring, completing the square, and the quadratic formula. Also included are methods for graphing quadratic functions.
Handout
Purple Math

Purplemath: Solving Quadratic Inequalities: Concepts

For Students 9th - 10th Standards
Introduces a conceptual basis for solving quadratic inequalities, looking at linear inequalities and using a knowledge of what quadratic graphs look like.
Primary
J Coffman

Joseph Coffman's Lecture Notes: Modeling Data With Quadratics

For Students 9th - 10th Standards
Learners explore quadratic functions and their graphs. Vocabulary, examples, methods, and a quiz are included.
Activity
Texas Instruments

Texas Instruments: Explore Graphs and Factors

For Students 9th - 10th Standards
Students use a graphing calculator to explore the relationship between the linear factors of a quadratic function and its zeros. They learn that the x-intercepts and axis of symmetry of a quadratic function can be determined from its...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Graphs of Quadratic Equations

For Students 9th - 10th
Twenty-one problems present a variety of problems working with various aspects of solving and graphing quadratic equations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the...
Unit Plan
Texas Education Agency

Texas Gateway: Determining Parent Functions (Verbal/graph)

For Students 9th - 10th Standards
Given a graph or verbal description of a function, the student will determine whether the parent function is quadratic or linear.
Handout
Math Is Fun

Math Is Fun: Algebra: Graphing Quadratic Equations

For Students 9th - 10th
Explains how to graph quadratic equations and how to find the quadratic equation when given just the graph. Includes ten practice questions.
Handout
CK-12 Foundation

Ck 12: Algebra: Graphing Quadratic Equations Study Guide

For Students 9th - 10th
This comprehensive study guide highlights the main terms and formulas needed to review graphing quadratic equations. Examples are included.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphing Calculator to Graph Quadratic Functions

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to use a graphing calculator to graph quadratic equations. Students examine guided notes, review guided practice, and attempt practice problems.
Unit Plan
Math Planet

Math Planet: Use Graphing to Solve Quadratic Equations

For Students 9th - 10th Standards
A quadratic equation is an equation that can be written on the standard form ax^2 + bx + c = 0, where a is not = 0. One way of solving a quadratic equation is by factoring. Another way of solving a quadratic equation is to solve it...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Quadratic Functions and Their Graphs

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Learn the anatomy of the graph of a quadratic function.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Use Graphs to Solve Quadratic Equations

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Determine the number of solutions to a quadratic equation and find such solutions by graphing.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphs of Quadratic Functions in Intercept Form

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Find the x-intercepts and vertex of a quadratic function by writing it in intercept form and solve real-world problems. Students examine guided notes, review guided...
Unit Plan
Khan Academy

Khan Academy: Graph Quadratics in Factored Form

For Students 9th - 10th Standards
Graph quadratic functions that are given in factored form. For example, graph y=(x-4)(x+2). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Handout
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Quadratic Equations

For Students 9th - 10th Standards
Find a concise explanation of how to graph quadratic equations. Several examples are given and clearly explained.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Graphing Quadratic Inequalities

For Students 9th - 10th
Find a quick, concise explanation of how to graph quadratic inequalities. An example is given and clearly explained.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Quadratic Functions and Their Graphs

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Graph and compare graphs of quadratic functions in the coordinate plane.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Use Graphs to Solve Quadratic Equations

For Students 8th - 9th
[Free Registration/Login may be required to access all resource tools.] Learn how to use graphs to solve quadratic equations.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphs of Quadratic Functions in Intercept Form

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Understanding the graphs of a parabola given equations. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.

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