1-1 Variables and Expressions Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Slides:

Advertisements

Similar presentations

A1.b How Do I Simplify and Evaluate Algebraic Expressions? Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Advertisements

Math 7A: Monday, Sept. 12, 2011 Test Alert: Unit 1 Test on Friday!

Evaluate expressions with grouping symbols

Variables and Expressions

Pre-Algebra 1-1 Variables and Expressions 1-1 Variables and Expressions Pre-Algebra Homework pp – 60 mult of 3 pp – 60 mult of 3.

Preview Warm Up California Standards Lesson Presentation.

Multiplying and Dividing Integers

UNIT ESSENTIAL QUESTION How are number properties and Expressions used to represent situations And relationships? Unit one : EXPRESSIONS AND NUMBER PROPERTIES.

Simplifying Algebraic Expressions

5 Minute Check Find. Complete in your notes (7 – 3) · (-4) – 1(-4) ³ + (4 – 2)

Course Order of Operations 1-4 Order of Operations Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of.

AF1. 4 Use algebraic terminology (e. g

5.1 Algebraic Expressions. CAN YOU FOLLOW ORDER OF OPERATIONS?

EXAMPLE 1 Following Order of Operations Music You buy a used guitar for $50. You then pay $10 for each of five guitar lessons. The total cost can be found.

Pre-Algebra 2-3 Multiplying and Dividing Integers 2-3 Multiplying and Dividing Integers Pre-Algebra Warm Up Warm Up Problem of the Day Problem of the Day.

1.2 Algebraic Expressions 8/24/12. Vocabulary Variable: A letter used to represent one or more numbers Exponent: The number or variable that represents.

Evaluating a Variable Expression To evaluate a variable expression:

1-1 Evaluating Algebraic Expressions Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson.

Course 1 Warm Up Lesson Presentation Lesson Presentation Problem of the Day 2-1 Variables and Expressions Course 1.

Variables and Algebraic Expressions 1-3. Vocabulary Variable- a letter represents a number that can vary. Constant- a number that does not change. Algebraic.

Lesson 1-6/ 1-7 Writing Algebraic Expressions. To evaluate an expression, substitute a number for a variable Example 1: Evaluate 3n + 7 when n = 3.

1-2 Order of Operations and Evaluating Expressions.

Warm Up Evaluate – 2(3) 15  (9) + (3) 21

ALGEBRA READINESS LESSON 2-6 Warm Up Lesson 2-6 Warm Up.

Integrated Mathematics Order of Operations. Remember the Phrase Order of Operations Parentheses - ( ) or [ ] Parentheses - ( ) or [ ] Exponents or Powers.

1-4 Variables and Algebraic Expressions Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson.

Simplifying Algebraic Expressions

Section 1.3 Order of Operations. Evaluate Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first.

Holt CA Course 1 Evaluating Algebraic Expressions 1-5 AF1.2 Write and evaluate an algebraic expression for a given situation, using up to three variables.

Use the correct order of operations to evaluate algebraic expressions (AF 1.2) Use algebraic terminology correctly (AF 1.4)

Course Variables and Algebraic Expressions 1-7 Variables and Algebraic Expressions Course 2 Warm Up Warm Up Objective Lesson Presentation Lesson.

Course Look for a Pattern in Integer Exponents 4-2 Look for a Pattern in Integer Exponents Course 3 Warm Up Warm Up Lesson Presentation Lesson Presentation.

Translating Words into Algebraic Expressions

1.2 Algebraic Expressions and Models. In this lesson you will: Evaluate algebraic expressions, Simplify algebraic expressions by combining like terms,

2-1 Variables and Expressions Course 1 Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day 2-1 Variables and Expressions Course.

Evaluate Is your answer 33 or 19? You can get 2 different answers depending on which operation you did first. We want everyone to get the same.

Pre-Algebra 1-1 Variables and Expressions 1-1 Variables and Expressions Pre-Algebra Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation.

Warm Up Evaluate  2(3) Course Variables and Expressions 5. 7(2.9)  (1.4) (9) + (3)  9.

1-6 Variables and Algebraic Expressions Warm Up Evaluate. 1. 5(7) – (18 – 11)  (40 – 35) (12 – 4)

2-1 Variables and Expressions Course 1 Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day 2-1 Variables and Expressions Course.

Course Variables and Algebraic Expressions 1-7 Variables and Algebraic Expressions Course 2 Warm Up Warm Up Problem of the Day Problem of the Day.

1-6 Multiplying and Dividing Integers Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Chapter 1 Lesson 1 Expressions and Formulas. Vocabulary Variable- Symbols, usually letters, used to represent unknown quantities. Algebraic Expressions-

Simplifying Algebraic Expressions

2-7 Variables and Algebraic Expressions Warm Up Problem of the Day

Multiplying and Dividing Integers

Simplifying Algebraic Expressions

Simplify and Evaluate algebraic expressions

Variables and Expressions

Variables and Expressions

Variables and Expressions

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Variables and Expressions

Warm Up Evaluate each expression for y = y + y 2. 7y

Objective: evaluate algebraic expressions

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Variables and Expressions

Learn to plug in variables to solve problems.

1-4 Order of Operations Warm Up Problem of the Day Lesson Presentation

Warm Up Evaluate. 1. 5(7) – (18 – 11)  (40 – 35) (12 – 4)

Warm Up Evaluate – 2(3)‏ 15  (9) + (3)‏ 21

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Preview Warm Up California Standards Lesson Presentation.

Variables and Expressions

4-2 Warm Up Problem of the Day Lesson Presentation

Do Now Simplify. 1. 5(7) – (18 – 11)  (40 – 35) (12 – 4)

Variables and Expressions

Learn to identify and evaluate expressions.

Evaluating Expressions

Presentation transcript:

1-1 Variables and Expressions Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation

Warm Up Evaluate  2(3) Course Variables and Expressions 5. 7(2.9)  (1.4) (9) + (3)  9

Problem of the Day Miss Smith obtained the prices below from the landscape company. She plans to buy five birch, two elm, one dogwood, and two oak trees. The landscape company will charge her $15 to plant each tree. How much will it cost? Trees Price Maple Elm Oak Dogwood Crab apple Birch $16.99 $22.99 $19.99 $23.99 $26.99 $17.99 $ Course Variables and Expressions

Learn to evaluate algebraic expressions. Course Variables and Expressions

Vocabulary variable coefficient algebraic expression constant evaluate substitute Course Variables and Expressions

A variable is a letter that represents a value that can change or vary. The coefficient is the number multiplied by the variable. CoefficientVariable Course Variables and Expressions

Course Variables and Expressions Order of Operations PEMDAS: 1. Parentheses 2. Exponents 3. Multiply and Divide from left to right. 4. Add and Subtract from left to right. Remember!

Evaluate each expression for the given value of the variable. Additional Example 1A: Evaluating Algebraic Expressions with One Variable Substitute 12 for x. Subtract. x – 5 for x = – 5 Course Variables and Expressions 7

Evaluate each expression for the given value of the variable. Additional Example 1B: Evaluating Algebraic Expressions with One Variable Course Variables and Expressions Substitute 4 for y. Multiply. 2y + 1 for y = 4 2(4) Add. 9

Evaluate each expression for the given value of the variable. Check It Out: Examples 1 Substitute 3 for x. Add. A. x + 5 for x = Course Variables and Expressions 8 Substitute 11 for c. Multiply. B. 4c + 1 for c = 11 4(11) Add. 45

Evaluate each expression for the given values of the variables. Additional Example 2: Evaluating Algebraic Expressions with Two Variables Substitute 2 for x and 1 for y. Multiply. A. 4x + 3y for x = 2 and y = 1 4(2) + 3(1) Course Variables and Expressions Substitute 3 for r and 5 for p. Multiply. B. 9r – 2p for r = 3 and p = 5 9(3) – 2(5) 27 – 10 Add. 11 Subtract. 17

Evaluate each expression for the given values of the variables. Check It Out: Example 2 Substitute 3 for x and 4 for y. Multiply. A. 3x + 2y for x = 3 and y = 4 3(3) + 2(4) Course Variables and Expressions Substitute 2 for q and 2 for r. Multiply. B. 8q – 3r for q = 2 and r = 2 8(2) – 3(2) 16 – 6 Add. 17 Subtract. 10

Use the expression 1.8c + 32 to convert the boiling point temperature from degrees Celsius to degrees Fahrenheit. Additional Example 3A: Physical Science Application Course Variables and Expressions Substitute 100 for c. Multiply. Boiling point of water at sea level: 100°C 1.8(100) c + 32 Add °C = 212°F Water boils at 212°F.

Lesson Quiz Evaluate each expression for the given values of the variables. 1.6x + 9 for x = 3 2.4x + 3y for x = 2, y = 3 3.If n is the amount of money in a savings account, then the expression n n can be used to find the amount in the account after it has earned interest for one year. Find the total in the account after one year if $500 is the initial amount $515 Course Variables and Expressions