1. Chapter 1 Vocabulary 1.) variable 2.) algebraic expression
3.) numerical expression
4.) expression

2. 1-1 VARIABLES AND EXPRESSIONS
Algebra 1

3. VARIABLES
A variable is a symbol, usually a letter that represents the value of a variable.
Variables are alphabetical letters such as; a, b, c, x, & t
Variables and numbers are included in algebraic expression

4. Algebraic Exp. Vs. Numeric Exp.
Algebraic Exp. includes variables and numbers
For example,
a + 5
Numeric Exp. includes numbers only
For example,
2 + 5

5. Expression vs. Equation
An expression includes only one side of an equation.
For example,
a + 5
An equation includes both sides of an equation.
For example,
a + 5 = 7

6. Ex 1)Write an algebraic expression for the word phrase.
a.) A number x more than 6
*b.) A number t less than 4

7. Ex. 2) Write an algebraic expression for the word phrase.
1.) 7 times the product of x and t
2.) The quotient of 29 and b

8. Ex. 3)What is an algebraic expression for the word phrase?
a.) The sum of 13 and twice a number h
b.) 6.8 more than the product of 5 and n
c.)7 minus the quotient of 3 and v
20.

9. Assignment

10. 4.) Write a verbal expression for each algebraic expression.
a.) 3t
c.) 5x +9
b.) 3 + t
d.) x/5 - 4

11. 5.) Refer to Got It? #5 On pg 6
#8 on Lesson Check, too