# Quadratic Equations and Functions

GRAPHING CALCULATOR You may wish to use a graphing calculator to complete the following ... ONLINE QUIZ at classzone.com d. PREVIEW. Prepare for...

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12y 2 4. } 24. (p. 103). 52. (22mn)4. (p. 489). 53. 5 p (7w7)2. (p. 489). 54. 6u3. } v p uv2. } 36. (p. 495). Find the zeros of the polynomial function. 55. f(x) 5 x2 2 4x 2 21 (p. 583). 56. f(x) 5 x2 1 10x 1 24 (p. 583). 57. f(x) 5 5x2 1 18x 1 9 (p.

Chapter 3: Quadratic Functions and Equations; Inequalities. 35. 7i(2 â 5i). = 14i â 35i2. Using the distributive law. = 14i + 35 i2 = â1. = 35 + 14i. Writing in the form a + bi. 36. 3i(6 + 4i) = 18i + 12i2 = 18i â 12 = â12 + 18i. 37. â2i(

Polynomial functions are classified by degree. For instance, a constant func- tion has degree 0 and a linear function has degree 1. In this section, you will study second-degree polynomial functions, which are called quadratic functions. For instance

SAVINGS Jack has \$100 to buy a game system. He plans ...... DEMOLITION DERBY When a car hits an object, the damage is measured by the collision impact.

square root, p. 266. â¢ complex number, p. 276. â¢ imaginary number, p. 276. â¢ completing the square, p. 284. â¢ quadratic formula, p. 292. â¢ discriminant, p. 294. â¢ best-fitting quadratic model ..... Drawing a Graph Use the table to graph t

MCR3UW. Equations of. Quadratic. Functions. Homework. Exercise. 2J. Use the information provided in the graphs to write the equation of each function in standard form y ax2. + bx. Ã· c. 1. 2 y. 4. 7. 3 yl. (2,. 5. (-1,0). 6. (6,0). X. (1,13). (4,-5).

Online Option Take an online self-check Chapter Readiness Quiz at connectED.mcgraw-hill.com. Diagnose ..... 2A. rn + 5n - r - 5. 2B. 3np + 15p - 4n - 20 ...... degree. Example 1 Factor a x2 + bx + c. Factor each trinomial. a. 7 x 2 + 29x + 4.

coefficient of the first term of a polynomial written in standard form ...... Original equation x 2 - 2x - 8 = 0. (-2) 2 - 2(-2) - 8 0 x = -2 or x = 4. (4) 2 - 2(4) - 8 0. 0 = 0. Simplify. 0 = 0. GuidedPractice. Solve each equation by graphing. 1A. -

zero feature to answer the questions. EXTRA PRACTICE for Lesson 4.1, p. 1013. ONLINE QUIZ at classzone.com. Solve the equation. (p. 18). 62. x 2 3 5 0 ...... systems of linear equations in three variables, see p. 178. Write a quadratic function in st

3.1. 312 Chapter 3 Polynomial and Rational Functions. Quadratic Functions. Many sports involve objects that are thrown, kicked, or hit, and then proceed with no addi- .... Solve for Add to both sides of the equation. Divide both sides by 2. Apply the