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## Math 120 Study Guide

by: Sierra Chamberlain

21

0

3

# Math 120 Study Guide MATH 102 004

Sierra Chamberlain
Towson

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Study Guide on CH 8 and 9 for test
COURSE
Intermediate Algebra Part II
PROF.
Professor Orshan
TYPE
Study Guide
PAGES
3
WORDS
KARMA
50 ?

## Popular in Mathematics (M)

This 3 page Study Guide was uploaded by Sierra Chamberlain on Wednesday March 2, 2016. The Study Guide belongs to MATH 102 004 at Towson University taught by Professor Orshan in Spring 2016. Since its upload, it has received 21 views. For similar materials see Intermediate Algebra Part II in Mathematics (M) at Towson University.

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Date Created: 03/02/16
Math 120 Study Guide Chapter 8&9 Order of Operations: P­ Parenthesis E­ Exponents M&D­ Multiplication/Division (whichever one you see first) A&S­ Addition/Subtraction (whichever one you see first) Chapter 8: Graphs, Relations, and Functions Difference between a “relation” and a “function”? A relation is a set of ordered pairs. For example: let A= (a,1), (b,2),(c,3) We can describe a relation by: A mapping, an ordered pair, a chart, a rule/an equation, a graph. Domain of a relation­ set of first elements (inputs) Domain of Set A= (a, b, c) Domain of Set B= ( ann, bob, nina, dan) The range of a relation­ set of second elements (outputs) Range of A= (1, 2, 3) Range of B= (18,22,19) Interval Notation­ a function is a special relation To test if a graph is of a function, we use the vertical line t st. 8.6 Math Notes Solving an inequality: When you multiply/divide by a negative switch the sign Intersection A [upside down u] means “and” Set of all elements that belong to both set A and set B, the elements they share Union A U B means “or” Set of all elements that are in set A or in set B or in both, what do they share. Properties of Square Roots For all positive real numbers a and b, That is, the square root of the product is the same as the product of the square roots. For all positive real numbers a and b, b ≠ 0: The square root of the quotient is the same as the quotient of the square roots. Chapter 9: Rules of Roots & Radicals Perfect Squares: 1 4 9 16 25 36 49 64 81 100 Etc. Simplifying radicals­  use “circle” method or “perfect square” method.

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