1. Lesson 1.1- Variables and Expressions, pg. 6
Objective:
To write mathematical expressions for verbal expressions and vice versa.

2. Vocabulary
Variables: symbols used to represent unspecified numbers or values.
Algebraic expressions: consists of one or more numbers and variables along with one or more arithmetic operations.

3. Factors: quantities being multiplied.
Product: the result of multiplication.
5 × 8 = 40
Power: an expression like xn, and is read “x to the nth power.” xn
product
Factors
exponent
base

4. Base: number being used as a factor.
Exponent: indicates the number of times the base is used as a factor.
43= 4×4×4 =64
Evaluate: find the value.

5. Key Words for Basic Operations
Add Subtract Multiply Divide
Sum Minus Times Quotient
Plus Less than Product Divided by
Increase Decrease Twice
More than difference
Squared- raise a number to the 2nd power
Cubed- raise a number to the 3rd power

6. Ex. 1: Write an algebraic expression for each verbal expression.
Five less than a number c
c - 5
2. 9 plus the product of 2 and the number d
9 + 2d
Three eighths of the original volume v ⅜v

7. Ex. 2: Write each expression algebraically.
The product of ¾ and a to the seventh power.
¾a7
The sum of 11 and x to the third power.
11 + x³

8. Ex. 3: Evaluate each expression.34 8² 26

9. Ex. 4: Write a verbal expression for each algebraic expression.1. 2.

10. A bakery sells a dozen bagels for $8. 50 and a dozen donuts for $3. 99
A bakery sells a dozen bagels for $8.50 and a dozen donuts for $3.99. Write and expression for the cost of buying b dozens of bagels and d dozen of donuts.
NBA #1, pg. 8, problems even