1. Sec P.1 Cont
Sec, P.1 cont.

2. Law of Trichotomy For any 2 numbers, a and b
Sec P.1 Cont
Law of Trichotomy
For any 2 numbers, a and b
a = b, a < b, or a >b

3. Absolute Value The distance a number is from 0 on the number line
What is |0|?

4. Abs. Value Properties |ab| = |a||b| |a/b| =|a|/|b| b ≠ 0
Remember on abs. val. Do what is inside the abs. first.

5. The distance between a & b
d(a,b) = |b-a| = |a-b|

6. Algebraic expressions Terms Variable terms Constant term Coefficient
Uses variables with numbers
Terms
Separated by addition
Variable terms
Terms that contains a variable
Constant term
Does not contain a variable
Coefficient
Numerical part of a term
Evaluate
Means substitute a # for the variable

7. Operations Primary operations Inverse operations
Addition and multiplication
Inverse operations
Subtraction and division

8. P. 10 Properties of negation and equality P. 11 Properties of zero
P. 9 at top
P. 9 rules of Algebra
P. 10 Properties of negation and equality
P. 11 Properties of zero
# 4 & 5
P. 11 Properties of Fractions
Ex. 5

9. Fundamental Theorem of Arithmetic
Factors or Divisors
The numbers you multiply together to get something.
Prime numbers
Number that the only factors are 1 and itself
Composite numbers
Can be written as a product of 2 or more primes
Fundamental Theorem of Arithmetic
Every positive number greater than 1 can be written as a product of primes in exactly 1 way

10. Homework
P. 12
51-71 odd, odd, odd