MATH 125 - College Algebra

CHAPTER 3

Professor Anna Cox's VIDEOS and Video Worksheets (Please watch video, print off pdf or fill out electronically and turn in through Moodle)

Section 3.1 Quadratic Functions and Their Graphs
    worksheet Section 3.1 Quadratic Functions and Their Graphs

Section 3.2 Polynomial Functions and Their Graphs
    worksheet Section 3.2 Polynomial Functions and Their Graphs

Section 3.3 Dividing Polynomials: Remainder and Factor Theorems
    worksheet Section 3.3 Dividing Polynomials: Remainder and Factor Theorems

Section 3.4 Zeros of Polynomial Functions
    worksheet Section 3.4 Zeros of Polynomial Functions

Section 3.5 Rational Functions and Their Graphs
    worksheet Section 3.5 Rational Functions and Their Graphs

Section 3.6 Polynomial and Rational Inequalities
    worksheet Section 3.6 Polynomial and Rational Inequalities

Section 3.7 Modeling Using Variation
    worksheet Section 3.7 Modeling Using Variation

Professor Anna Cox's VIDEOS that go with the Learning Guides NOT REQUIRED but for additional help:

Please PRINT and COMPLETE the pencil problems on this handout.  Chapter 3 Learning Guide  (TYPO on 3.4 number 2.  Should be over 2 not 3) In my videos, I talk through how to solve the written problems and give additional important information.

Professor Anna Cox's VIDEOS that go with the Learning Guides:

Section 3.1 Quadratic Functions and Their Graphs

Section 3.2 Polynomial Functions and Their Graphs

Section 3.3 Dividing Polynomials: Remainder and Factor Theorems

Section 3.4 Zeros of Polynomial Functions

Section 3.5 Rational Functions and Their Graphs (long but LOTS of examples even some not on the packet!)

Section 3.6 Polynomial and Rational Inequalities

Section 3.7 Modeling Using Variation

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Questions from students

3.1.37 graphing a parabola and finding intercepts, domain and range

3.2.21 graphing a polynomial

3.2.41 graphing a polynomial

3.2.47 graphing a polynomial

3.2.55 graphing a polynomial

3.2.57 graphing a polynomial

3.2.73 story problem on extinction

synthetic example using the pencil problem from packet (section 3.3)

3-3-7 long division

3.4.25 finding a polynomial given roots

3-4-27 finding a polynomial given the roots

3.4.43 finding zeros

3-5-57 graphing a rational function

3.6.31 graphing inequalities

3.6.35 graphing inequalities

3.6.39 graphing inequalities

3-6-47 graphing an inequality