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Unit 14: Quadratic functions & equations

About this unit.

We've seen linear and exponential functions, and now we're ready for quadratic functions. We'll explore how these functions and the parabolas they produce can be used to solve real-world problems.

Intro to parabolas

  • Parabolas intro (Opens a modal)
  • Interpreting a parabola in context (Opens a modal)
  • Interpret a quadratic graph (Opens a modal)
  • Parabolas intro Get 3 of 4 questions to level up!
  • Interpret parabolas in context Get 3 of 4 questions to level up!
  • Interpret a quadratic graph Get 3 of 4 questions to level up!

Solving and graphing with factored form

  • Zero product property (Opens a modal)
  • Graphing quadratics in factored form (Opens a modal)
  • Quadratic word problems (factored form) (Opens a modal)
  • Zero product property Get 3 of 4 questions to level up!
  • Graph quadratics in factored form Get 3 of 4 questions to level up!
  • Quadratic word problems (factored form) Get 3 of 4 questions to level up!

Solving by taking the square root

  • Solving quadratics by taking square roots (Opens a modal)
  • Solving quadratics by taking square roots examples (Opens a modal)
  • Quadratics by taking square roots: strategy (Opens a modal)
  • Solving quadratics by taking square roots: with steps (Opens a modal)
  • Solving simple quadratics review (Opens a modal)
  • Quadratics by taking square roots (intro) Get 3 of 4 questions to level up!
  • Quadratics by taking square roots Get 3 of 4 questions to level up!
  • Quadratics by taking square roots: strategy Get 3 of 4 questions to level up!
  • Quadratics by taking square roots: with steps Get 3 of 4 questions to level up!

Vertex form

  • Vertex form introduction (Opens a modal)
  • Graphing quadratics: vertex form (Opens a modal)
  • Quadratic word problems (vertex form) (Opens a modal)
  • Graph quadratics in vertex form Get 3 of 4 questions to level up!
  • Quadratic word problems (vertex form) Get 3 of 4 questions to level up!

Solving quadratics by factoring

  • Solving quadratics by factoring (Opens a modal)
  • Solving quadratics by factoring: leading coefficient ≠ 1 (Opens a modal)
  • Solving quadratics using structure (Opens a modal)
  • Quadratic equations word problem: triangle dimensions (Opens a modal)
  • Quadratic equations word problem: box dimensions (Opens a modal)
  • Solving quadratics by factoring review (Opens a modal)
  • Quadratics by factoring (intro) Get 3 of 4 questions to level up!
  • Quadratics by factoring Get 3 of 4 questions to level up!
  • Solve equations using structure Get 3 of 4 questions to level up!

The quadratic formula

  • The quadratic formula (Opens a modal)
  • Understanding the quadratic formula (Opens a modal)
  • Worked example: quadratic formula (example 2) (Opens a modal)
  • Worked example: quadratic formula (negative coefficients) (Opens a modal)
  • Using the quadratic formula: number of solutions (Opens a modal)
  • Quadratic formula review (Opens a modal)
  • Discriminant review (Opens a modal)
  • Quadratic formula Get 3 of 4 questions to level up!
  • Number of solutions of quadratic equations Get 3 of 4 questions to level up!

Completing the square intro

  • Completing the square (Opens a modal)
  • Worked example: Completing the square (intro) (Opens a modal)
  • Worked example: Rewriting expressions by completing the square (Opens a modal)
  • Worked example: Rewriting & solving equations by completing the square (Opens a modal)
  • Completing the square (intro) Get 3 of 4 questions to level up!
  • Completing the square (intermediate) Get 3 of 4 questions to level up!

More on completing the square

  • Solve by completing the square: Integer solutions (Opens a modal)
  • Solve by completing the square: Non-integer solutions (Opens a modal)
  • Worked example: completing the square (leading coefficient ≠ 1) (Opens a modal)
  • Solving quadratics by completing the square: no solution (Opens a modal)
  • Proof of the quadratic formula (Opens a modal)
  • Solving quadratics by completing the square (Opens a modal)
  • Completing the square review (Opens a modal)
  • Quadratic formula proof review (Opens a modal)
  • Solve equations by completing the square Get 3 of 4 questions to level up!
  • Completing the square Get 3 of 4 questions to level up!

Strategizing to solve quadratic equations

  • Strategy in solving quadratic equations (Opens a modal)
  • Strategy in solving quadratics Get 3 of 4 questions to level up!

Quadratic standard form

  • Finding the vertex of a parabola in standard form (Opens a modal)
  • Graphing quadratics: standard form (Opens a modal)
  • Quadratic word problem: ball (Opens a modal)
  • Graph quadratics in standard form Get 3 of 4 questions to level up!
  • Quadratic word problems (standard form) Get 3 of 4 questions to level up!

Features & forms of quadratic functions

  • Forms & features of quadratic functions (Opens a modal)
  • Worked examples: Forms & features of quadratic functions (Opens a modal)
  • Vertex & axis of symmetry of a parabola (Opens a modal)
  • Finding features of quadratic functions (Opens a modal)
  • Interpret quadratic models: Factored form (Opens a modal)
  • Interpret quadratic models: Vertex form (Opens a modal)
  • Graphing quadratics review (Opens a modal)
  • Creativity break: How does creativity play a role in your everyday life? (Opens a modal)
  • Features of quadratic functions: strategy Get 3 of 4 questions to level up!
  • Features of quadratic functions Get 3 of 4 questions to level up!
  • Graph parabolas in all forms Get 3 of 4 questions to level up!
  • Interpret quadratic models Get 3 of 4 questions to level up!

Comparing quadratic functions

  • Comparing features of quadratic functions (Opens a modal)
  • Comparing maximum points of quadratic functions (Opens a modal)
  • Compare quadratic functions Get 3 of 4 questions to level up!

Transforming quadratic functions

  • Intro to parabola transformations (Opens a modal)
  • Shifting parabolas (Opens a modal)
  • Scaling & reflecting parabolas (Opens a modal)
  • Quadratic functions & equations: FAQ (Opens a modal)
  • Shift parabolas Get 3 of 4 questions to level up!
  • Scale & reflect parabolas Get 3 of 4 questions to level up!

IMAGES

  1. Solved Assignment: Solve each equation by completing the

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  2. Algebra-1- Final-EXAM- Review, Solve each inequality and graph its

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  3. Kuta Software Infinite Algebra 1 Literal Equations Answers

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  6. Algebra 1 Unit 2

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VIDEO

  1. Springboard Algebra 1 Lesson 2-1 Writing and Solving Equations

  2. How to Solve One Step Equations

  3. ALEKS Algebra 1 Help

  4. EXERCISE 1.1 LINEAR ALGEBRA

  5. Algebra 1 Solving systems of equations by graphing

  6. Unit 2 Lesson 14 Solving Systems by Elimination Part 1

COMMENTS

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  3. Free Printable Math Worksheets for Algebra 1

    Finding slope from a graph. Finding slope from two points. Finding slope from an equation. Graphing lines using slope-intercept form. Graphing lines using standard form. Writing linear equations. Graphing linear inequalities. Graphing absolute value equations. Direct variation.

  4. Algebra 1

    The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a function; Exponential models; and Quadratic equations, functions, and graphs. Khan Academy's Algebra 1 course is built to deliver a comprehensive, illuminating, engaging, and Common Core aligned experience!

  5. Solving equations & inequalities

    Unit test. Level up on all the skills in this unit and collect up to 1,100 Mastery points! There are lots of strategies we can use to solve equations. Let's explore some different ways to solve equations and inequalities. We'll also see what it takes for an equation to have no solution, or infinite solutions.

  6. PDF Systems of Equations Substitution

    Kuta Software - Infinite Algebra 1 Name_____ Solving Systems of Equations by Substitution Date_____ Period____ Solve each system by substitution. 1) y = 6x − 11 −2x − 3y = −7 (2, 1) 2) 2x − 3y = −1 y = x − 1 (4, 3) 3) y = −3x + 5 5x − 4y = −3 (1, 2) 4) −3x − 3y = 3 y = −5x − 17 (−4, 3)

  7. PDF Multi-Step Equations Date Period

    19) 24 a − 22 = −4(1 − 6a) 20) −5(1 − 5x) + 5(−8x − 2) = −4x − 8x ©k l2t0 1K2 U KIu utua 7 qS7oCfOt BwMaDrlel uLxL5C8.h 4 2A aldl0 sr SibgOhct 7su Qrie XsZe6r zvPeBdB.V c HM9aJd Ie f Qwzihtdh b xINnNfAiVnBi3tSe g zAal 3g deVbXr3a D w1r.o Worksheet by Kuta Software LLC

  8. Quadratic functions & equations

    Solve by completing the square: Integer solutions. (Opens a modal) Solve by completing the square: Non-integer solutions. (Opens a modal) Worked example: completing the square (leading coefficient ≠ 1) (Opens a modal) Solving quadratics by completing the square: no solution. (Opens a modal) Proof of the quadratic formula.

  9. PDF Algebra 1 Chapter Opener for Chapter 1: Solving Linear Equations

    solve equations by adding or subtracting. • In Examples 1 and 2, students need to understand that solving an equation is a process of reasoning. In the process of learning to solve equations, students learn "if … then" statements as stated in the Properties of Equality such as if x = y, then x + 4 = y + 4. This understanding is key to ...

  10. PDF Solve each equation with the quadratic formula.

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    Infinite number of solutions. 23) −14 =. 24) (2, 0) (−1, 1) Create your own worksheets like this one with Infinite Algebra 1. Free trial available at KutaSoftware.com. ©q R2h041222 cK7uitqaL ASPovfPthwEanrQed vLOLrCy.6 w AAVlXl9 wrxivgghCtUsC xrmeAsfeGrivpe9du.Q Q iMwaHdMeB GwSijtZht xIrnOfNiRnFiotLeH 1AAlSgheWb4r0aG X1K.J.

  12. Chapter 2 Review Exercises

    Exercise 71. (9n + 5) − (3n − 7) = 20 − (4n − 2) Exercise 72. 2[ − 16 + 5(8k − 6)] = 8(3 − 4k) − 32. Answer. Classify Equations. In the following exercises, classify each equation as a conditional equation, an identity, or a contradiction and then state the solution. Exercise 73. 17y − 3(4 − 2y) = 11(y − 1) + 12y − 1.

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    Algebra 1 ID: 1 Name_____ Date_____ Period____ ©8 d2p0m1v4 0 YKmuHtSa P uS uo PfstYwpakr OeI YLpLdCm.E S WAll RlB zr Xi9gXh0tzsf mrWe5sEe Ar7vIe 6d i. 5 Solving One and Two Step Equations ... Solving One and Two Step Equations Solve each equation. 1) ...

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  15. PDF Alg 1 A.4 Equations WS

    Algebra 1 SOL A.4 Equations Worksheet Mrs. Grieser Translate the expressions and solve the resulting equation. 13) Ten times a number increased by 5 is 75. 14) The quotient of twice a number and 3 is 6. 15) Eight less than five times a number is 42. 16) The product of four and the quantity 2 less than a number is 16. Solve the word problems.

  16. Algebra

    Section 2.2 : Linear Equations. Solve each of the following equations and check your answer. Here is a set of assignement problems (for use by instructors) to accompany the Linear Equations section of the Solving Equations and Inequalities chapter of the notes for Paul Dawkins Algebra course at Lamar University.

  17. Solved b=16 Algebra 1 Assignment Solve each equation by

    Algebra; Algebra questions and answers; b=16 Algebra 1 Assignment Solve each equation by factoring. 1) R² = 19 3) 2k² = -14 - 11k Solve each equation with the quadratic formula. 5) -6k² + 5k + 69 = 0 7) 9r² - 12r = 7 Sketch the graph of each function. 8) y = -2x² + 8x - 11 -63-4-3-2-1 Ay 1 2 3 Solve each equation with the quadratic formula.

  18. PDF Solving Completing Square

    Kuta Software - Infinite Algebra 1 Name_____ Solving Equations by Completing the Square Date_____ Period____ ... Solve each equation by completing the square. 1) a2 + 2a − 3 = 0 {1, −3} 2) a2 − 2a − 8 = 0 {4, −2} 3) p2 + 16 p − 22 = 0 {1.273 , −17.273} 4) k2 + 8k + 12 = 0 {−2, −6} 5) r2 + 2r − 33 = 0 {4.83 , −6.83} 6) a2 ...

  19. PDF Infinite Algebra 1

    D12 Unit 6 Algebra 1 Assignment All Methods of Solving Quadratics ... Solve each equation using factoring. 1) (2r - 7)(5r - 6) = 02) x2 + 7x + 10 = 0 3) x2 = 6x + 7 4) x2 - 4x = 0 Solve each equation by taking square roots. 5) 7r2 = 63 6) ... Infinite Algebra 1 - All Methods of Solving Quadratics

  20. Algebra I Assignment

    This assignment has three parts. Part 1. In the following chart, you will see multiple types of algebraic questions. You can use this Algebraic Equations lesson to refresh your memory on the most ...

  21. Algebra

    Chapter 2 : Solving Equations and Inequalities. Here are a set of assignment problems for the Solving Equations and Inequalities chapter of the Algebra notes. Please note that these problems do not have any solutions available. These are intended mostly for instructors who might want a set of problems to assign for turning in.

  22. 1.3 assignment

    In Exercises 1—6,solve the equation. Justify each step. Check your solution. 2. 5. The sum of the angle measures of a quadrilateral is 3600. In Exercises 7 and 8, write and solve an equation to find the value of x. Use a protractor to check the reasonableness of your answer. 7. 8. 1> In Exercises 9—14,solve the equation. Justify each step.

  23. PDF Solve each equation. Remember to check for extraneous solutions.

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