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by: elzbietaag

Functions MATH 1503 - 001

Collin County Community College District
GPA 3.76
College Algebra
Laniel L Gibson

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About this Document

notes over functions! i tried to explain things out so you understand how the answer is what it is and i tried not to make them sound boring!
College Algebra
Laniel L Gibson
Class Notes
MATH 1503
25 ?




Popular in College Algebra

Popular in Applied Mathematics

This 3 page Class Notes was uploaded by elzbietaag on Wednesday September 2, 2015. The Class Notes belongs to MATH 1503 - 001 at University of Oklahoma taught by Laniel L Gibson in Fall 2015. Since its upload, it has received 20 views. For similar materials see College Algebra in Applied Mathematics at University of Oklahoma.


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Date Created: 09/02/15
Bare with me its hard to do math on a computer but I did the best I could College Algebra Chapter 1 functions 0 Function for every input there is exactly ONE output Domain Range in 3 V H37 41 a if e 7 llt ll lflUlll ll tiltsl ll 39 39 i lquot39 39 39 39 H H lquot H H i i 77 39 39 39 H H Are these functions 3 gt2 2 4 b y l 8 7 7 glO YES NO 4 8 2 7 YES You could also write functions like this E271948 etc AND you could graph functions too is this a function J A 3 2 1 2 3 4 5 I o J No Since the line hits the y avir Alir n H icnll a Fllrinn O 39 3 is a N O There l at an equation x Yes y Yes y NO Bare with me its hard to do math on a computer but I did the best I could l x37y59xy4110 NO Now lets take a look at the last one Yes if you take 54 it equals 9 BUT apparently we don t need to do all that math All we need to do is look at the exponents and if ONE of them is even THEN ITS NOT A FUNCTION I wish all of math was that easy There s also another plot twist M is seen as being evenso if we have an equation like y x1 its NOT a function Let s do some equations FX 4X3x2 nd f1 0 plug itin 0 41312 o 43 o 7 o sof1 7 nd fz i 3942322 li ill THEM o 812 w w 0 20 o sof2 2 nd 2k3 0 42lt332k32 0 8k312k6 fX5XX2 nd f3 0 5332 0 159 o 24 0 nd f3k2 0 5l3lt23k22 uairiitlwraci o 15k29Ilt4 nd f2xh o 52xh2xh2 o 10x5h4x24hxh2 Difference quotient Bare with me its hard to do math on a computer but I did the best I could l xhr xl h fX 47XX2 o l47xhXh2l47xxZ tit h 4 7967h22hXh2 47962 h o 7h2hxhZ h factorouttheh h72xh h o 72xh Extra notes 0 What is illegal in math 0 Dividing by zero 0 Trying to nd square root of a negative number


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