1. 1.1 Variables and Expressions

2. Vocabulary
Variable: Symbols used to represent unspecified numbers or values.
Typically you use the first letter of the word that describes the unspecified value.
For example: if you’re trying to solve for Area, you use an A as the variable
x & y are common variables as well

3. More vocabulary
Algebraic Expression: Consists of one or more numbers and variables along with one or more arithmetic operations.

4. How do you write an expression that shows multiplication?
Factors: The quantities being multiplied
Product: The result of a multiplication problem.

5. Exponents
Exponent or Power
The exponent indicates the number of times the base is used as a factor.
Base

6. Write an algebraic expression for each verbal expression.
Example #1
A) eight more than a number
B) 7 less the product of 4 and a number x.
C) one third of the original area a.
D) the product of 7 and m to the fifth power.

7. To evaluate an expression means to find its value.
Example #2
Evaluate 26
Example #3: Write a verbal expression for each algebraic expression.
A) 4m3
B) c2 + 21d 64
The product of 4 and m to the 3rd power
c squared plus the product of 21 and d
These answers aren’t the only way of writing the expression.

8. Homework Assignment # 1
p even