Algebra 1 Common Core Student Edition, Grade 8-9

I

\^9

Quadrat ic Functions

and Equat ions

Get Ready!^543

Common Core Performance Task^545

9-1 Quadratic Graphs and Their Properties^546

9-2 Quadratic Functions^553

Concept Byte ACTIVITY: Rates o f In c re a s e^559

9-3 Solving Quadratic Equations^561

Concept Byte TECHNOLOGY: F in d in g Roots^567

9-4 Factoring to Solve Q uadratic Equations^568

Concept Byte ACTIVITY: W r i t i n g Q u a d r a t i c E q u a tio n s^573

Mid-Chapter Quiz 575

9-5 Completing the Square^576

9-6 The Q uadratic Formula and the D iscrim inant^582

9-7 Linear, Q uadratic, and Exponential Models

Concept Byte TECHNOLOGY: A n a ly z in g

589

Residual Plots 595

9-8 Systems o f Linear and Q u a d ra tic Equations^596

Assessment a n d Test Prep

Pull It A ll Together^602

Chapter Review 603

C h a p te r Test 6 0 7

Cumulative Standards Review 608

Number and Quantify

Quantities

Reason q u an tita tiv ely and use units to solve problems

Algebra

Creating Equations

Create equations th a t describe numbers or relationships

Reasoning w ith Equations and Inequalities

Understand solving equations as a process o f reasoning and

explain the reasoning

Solve equations and inequalities in one variable

Fu n ct i o n s

Interpreting Functions

In terpret functions th a t arise in applications in term s o f th e context

Analyze functions using d iffe re n t representations

Linear and Exponential Models

Construct and compare linear and exponential models and solve problems

St a t i st i c s a n d P r o b a b i l i t y

Interpreting Categorical and Q uantitative Data

Summarize, represent, and interpret data on tw o categorical and

q u an tita tive variables ^ ^ 4

xxxiv Co n t en t s