1. College Algebra Section 1.2

2.  Algebraic Expressions – variables and constants combined by mathematical operations  Constants – fixed numbers  Variables – letters that represent unspecified numbers  Terms – pieces of the expression joined by addition/subtraction  Factors – pieces joined by multiplication  Coefficients – the constant (number) part of a term  Variable factor – the variable (letter) part of a term

4.  Identify the Property shown

6.  Identify the property shown and the quantity being added or subtracted

7.  Parentheses/brackets/groupi ngs  Exponents/powers  Multiplication/Division in order from left to right  Addition/Subtraction in order from left to right

9.  UNION ~  Everything in A combined with everything in B  INTERSECTION ~  Everything that is included in BOTH A and B

10.  (-5, 2] U (2, 4]  [-2, ∞) (-4, 7) (-3, 2]