• # Absence 2/6/2014

by David Rubenstein Length:
Walkthrough of notes and examples for Cosine and Tangent Trigonometric Functions.
• # Trigonometry Introduction

by David Rubenstein Length:
Here is a basic introductory video to Trigonometry. This video shows how to setup the triangle with the labels on the correct sides and how to setup and solve sin, cos, and tan problems using the triangle.
• # Inverse Variation

by David Rubenstein Length:
This is an example of inverse variation. This example includes an independent variable where the power is other than 1. You should see that the power doesn't matter in the basic formation of the equation.
• # Direct Variation

by David Rubenstein Length:
This is an example of of direct variation as applied in physics with the formula F=ma.
• # Graphing Linear Inequalities

by David Rubenstein Length:
• # Solving and Graphing Inequalities Pt. 1

by David Rubenstein Length:
This video shows how to graph problems such as 2x + 4>24. Single variable with a single axis. If the main link does not work on your device, you can download this Video.
• # Solving and Graphing inequalities pt. 2

by David Rubenstein Length:
This video shows how to solve and graph single variable inequalities such as m/3 - 3 < -6. Use the following link to download the Video.
• # Solving and Graphing Inequalities Pt. 3

by David Rubenstein Length:
This video explains how to solve and graph single variable inequalities such as -3(p + 1) < -18. Use the following link to download the Video.
• # Solving and Graphing Inequalities pt 4

by David Rubenstein Length:
This video explains how to solve and graph single variable inequalities such as (-9 + a)/15 >1. Use the following link to download the Video.
• # Solving for Y

by David Rubenstein Length:
Part one of the Solving for Y series.
• # Solving for Y with negatives.

by David Rubenstein Length:
Part 2 of Solving for Y. Now with negatives.
• # Solving for Y with Inequalities

by David Rubenstein Length:
This time we're using inequalites like < and >.
• # Solving for Y: Negatives and Inequalities

by David Rubenstein Length:
This is part 4 of the Solving for Y series. This episode combines negative y with inequalities.

• # Clearing Fractions

by David Rubenstein Length:
Simplify equations by eliminating those pesky fractions with minimal effort.
• # Minus Vs. Negatives

by David Rubenstein Length:
Find out when you should use the minus key and when to use the negative button on your calculator.