1 1 Notes Algebra 1 Variables and Expressions

1 -1 Notes Algebra 1 Variables and Expressions

Algebraic Expression Consist of variables, numbers and operations.

Variables Symbols or letters used to represent unspecified numbers and values.

Term May be a number or variable or a product or quotient of numbers and variables.

Factors The quantities being multiplied in a multiplication expression

Product The answer to a multiplication expression

Exponent (power) Indicates the number of times the base is used as a factor.

Base The number that is used as a factor in an exponential expression

Exponent-4 Base-2 (2)(2) = 16

Example 1 pg. 5 Write a verbal expression •

Example 1 pg. 5 Write a verbal expression •

Example 2 pg. 6 Write Algebraic Expressions Write an algebraic expression for each verbal expression. 1. ) 5 less than a number c 2. ) 9 plus the product of 2 and d 3. ) two fifths of the area a

Example 2 pg. 6 Write Algebraic Expressions •

Example 3 pg. 6 Write an expression Mr. Nehru bought two adult tickets and three student tickets for the planetarium show. Write an algebraic expression that represents the cost of the tickets

Example 3 pg. 6 Write an expression •

1 -1 pg. 7 11 -33 o, 34 -40, 43 -61(x 3)