Warm Up  Brainstorm words that are associated with (that mean) the following symbols. You need at least two per symbol. SymbolAssociated Word + - ● ÷

Section 1.1

 TSWBAT ◦ Convert word phrases into algebraic expressions and back. ◦ Write a rule that describes a pattern.

 Quantity  Variable  Algebraic Expression  Numerical Expression

Associated Words SymbolAssociated Word +Add, added to, sum, increase, more than, total, plus -Minus, subtract, subtracted from, less than, decreaseless than ●Multiply, times, product, of (for fractions), twice (●2), each ÷Divide, divided by, quotient, over (for fractions)

 Less than is a special word. You must flip the order for less than.  Example: 4 less than a number r r - 4

Convert the following phrases in to algebraic expressions more than a number n Answer: n less than a number n Answer: n – 74

1. 18 more than a number n 2. 7 minus a number n 3. The sum of a number n and plus a number n

What is the algebraic expression for the verbal phrase: 1. 5 times a number n ◦ Answer: 5n 2. The quotient of a number n and 7 ◦ Answer: n/7

1. 6 times a number n 2. The quotient of 18 and a number n 3. The product of a number n and divided by a number n

What is the algebraic expression for the word phrase 1. 8 less than the product of a number x and 4. ◦ Answer:4x – 8 2. Twice the sum of a number x and 8. ◦ Answer:2(x + 8) 3. The quotient of 5 and the sum of 12 and a number x. ◦ Answer:

Write a verbal phrase you can use to represent the algebraic expression. 1. X x x – 1

It costs $7.50 each hour you rent a scooter. There is also a $10 safety deposit. Write a rule in words and as an algebraic expression to model the relationship. HoursCost 1$ $ $ $ $47.50

 Pg #1-7, 10-36, 39, 48-50, 53-56