Linear Systems(Chapter 7 Test Answers)

Chapter 7 we learn the basics of multiple linear systems of equations, including the powerful simplex method of Dantzig.

Homework solutions on Inverse Trig & Trig Word Problems

Answers to some Inverse Trig and Trig Word problems in Chapter 4 Review homework.

More Trig graphing and Trig Applications

Graphing Tan, Cot, Sec, Csc functions and word problems involving the trig functions.

Families of Functions and Transformations

How to graph peice-wise functions, parabolas, family of functions, transformations and mathematical modeling. This is an explanation of a Test given after Chapter 1 of a Precalculus book that covers these topics that were first introduced in earlier High school Algebra Courses.

Answers to a first Trig Test

Answers to a first Test in Trig: Graphing Sine Cosine and other trig facts and word problems.

Click on the Green title to see the video.

Review of Algebra 1 Graphing and Modeling

Line and circle equations and direct and inverse relationship modeling

Chapter 9 B Test Answers

Answers to questions about Probability, Combinations and Permutations

Induction to Probability

He we go over an inductive proof, Combinations, Permutations and Probability

Log and Exponential Practice

Here we explain how to work with logrithms and exponential problems

Induction Proof? Are all horses the same Color?

Here is the classic fake proof by induction attributed to George Polya that there is no such thing as a "horse of a different color"

Linear Programming

Linear Programming was so effective that it was top secret during World War II! Given 70 jobs for 70 people, there are more choices than particales in the universe! This method helps you find the best and worst choices quickly!

More Matrix Problems

Chapter 12 of the Precalculus text and Chapter 12 of the Honors Algebra 2 Trig text deal with matrices. Here we go over some of the applications of the wonderful world of the matrix. After some calculus, you may enjoy taking a course in Linear Algebra!

Partial Fraction Decomposition Example

Doing a Partial Fraction Decomposition problem is a great opportunity to practice some of our systems of equations techniques like Gaussian Elimination, Cramer's Rule, and Inverse Matrices.

Chapter 2 Answers

Here we cover Graphing Parabolas (quadratics), Polynomials, and Rational Functions using Synthetic Division and DeCartes' Rules