update 5/4/14
Trigonometric Functions, Identities, and values
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UPDATE 4/4/14
Logarithms
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These two videos are especially important to solving logarithmic problems. I HIGHLY RECOMMEND that you watch these two.
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update 3/25/14
Oh, and of course, our good ole bff: mathbff
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Here is a video describing synthetic division, which is mentioned in the above video.
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UPDATE 3/20/14
Here are a couple of videos dealing with some of the more complex polynomial operations. On the left you'll find a video explaining long division with polynomials. On the right you will see a refresher on how to solve a problem by completing the square.
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Here are several videos detailing how to properly work with exponents. This should be basic review, but upon correcting your homework, I noticed that many of you did not understand the basics of working with exponents. We will be unable to cover this further in class, so I highly recommend that you watch these videos and practice by doing more problems from your book.
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update 2/28/14
Here is an alternative method to finding the closest point of a line to another point of your choosing.
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update 2/4/14
Interval notation
Working with interval notation can be hard. Often, we don't even know there is a difference in the way we write things. Should we use "<", ">", or "="? Should we use {}, [], or ()? This page will tell you what you need to know.
By the way, How do we solve story problems?
Here are some helpful steps you can take. Use these when you aren't sure where to start.
steps_for_solving_story_problems.pdf | |
File Size: | 100 kb |
File Type: |
Update 1/31/14
Even more Functions and Graphs sections 1.3-2.1 1/31/14This video clearly shows how to insert your argument (x) (independent variable) into your image to solve for your dependent variable (y)
Another video from Khan Academy that discusses how to work with Functions as Graphs.
How do you determine your domain and range from a graph? This video will tell you. These are very similar concepts to what we did with the Viewing Rectangle, but these focus only on where the actual graph is, instead of everything you can see.
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Factoring Polynomials - Quadratics 1/31/14This is the method that I use to factor quadratics, but Sal Khan explains it better than I do.
This is the same method, but is VERY well explained and clearly demonstrated.
One last video on factoring quadratic equations. This time we will learn a great trick for factoring ax^2 + bx + c = 0 that works very well especially when "a" does not equal 1. Skip to 6:11 for the trick.
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Update 1/22/14
Section 1.3 More on Functions - 1/22/14 |
Story Problems-
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Update 1/19/14
Section 1.1 Getting Started - 1/19/14
You guys need to know about functions. This should be something of a review, and we will talk about it in class. However, here is a video that explains some of what you need to know.