Chapter One:  Introduction to Algebra

Take notes on the following topics.

Chapter One

Section1.1

Section1.2

Section 1.3

Section 1.4

Section 1.5

Section 1.6

Section 1.7

Section 1.8

Section 1.9

Section 1.10

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Section 1.6 :  Writing Expressions

 

Translating an English Expression into an Algebraic expression.

Operation English Expression Algebraic Expression Value for x = 10 Addition x plus 5 5 added to x x increased by 5 5 more than x the sum of x and 5 x + 5 x + 5 10 + 5 15 Subtraction x minus 5 5 subtracted from x 5 less than x x decreased by 5 the difference of x and 5 x - 5 x - 5 10 - 5 5 Multiplication 5 times x 5 multiplied by x the product of 5 and x 5x 5x 5(10) 50 Division x divided by 5 the quotient of x ÷ 5 x/5 x/5 (10)/5 2

Take class notes.

Rework the examples that are illustrated in this section and the examples that I demonstrated in class.

Do your homework.

Write down questions (examples or concept that you do not understand).......then.............. Ask these questions in class.

Quick Quiz

Write an algebraic expression for each word description.

1.  7 books less than the number of books  b  on the shelf

2.  3 years more than Jim's age

Answers:   1. b - 7   2.  j + 3

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