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Showing posts with label SV. Show all posts
Showing posts with label SV. Show all posts

Thursday, November 14, 2013

SV #5 Unit J Concepts 3-4: How to Solve 3-Variable Equations

In this video, we are going to learn how to effectively take 3-step solving to the next level. We must pay attention to not get our signs wrong because that would result in a completely different answer. Be sure to simplify the original equations as best as you can in order to make your life much easier. Be careful and multiply, add, subtract, and divide correctly in order to lead up to the correct answer. Good ol' day chap.

Sunday, November 3, 2013

SV #4 Unit I Concept 2: Graphing Functions (Logarithmic)

This video is just like concept 1, but with a vertical asymptote instead. Instead of  having the asymptote equal k, we set it the same as h. Therefore, it is also imperative to draw it vertically instead of drawing it horizontally. The other key information we need to derive from these problems are an x-intercept, y-intercept, domain, range, key points, and the graph. The range, for vertical asymptote-oriented functions, is all real numbers. The domain is the varying factor for these functions.


Monday, October 21, 2013

SV #3 Unit H Concept 7: Finding Logs Given Approximations

This problem is about "treasure hunting" where you utilize the clues given in order to find the answer to the log that is given. The answer is typically in variable form due to the clues being substitutes for the logs. Why we solve this problem is to use our overall understanding of logs in order to do well on the test on Tuesday. Using the property of logs is what this problem does an exceptional job on due to its wide variations of logs.
What we need to be pretentious about regarding this problem is to use ONLY the clues given to you, plus the extra 1 clue that we should all know how to find. Also, it is a key point to remember to separate the problem where the addition and subtraction marks do not match in order to divide the numerator and denominator.

Wednesday, October 9, 2013

SV #2 Unit G Concept 1-7: GRAPHING RATIONAL FUNCTIONZ


This student video is primarily about finding the parts of rational functions in order to graph them. The horizontal asymptote/slant asymptote, vertical asymptote, domain, x-intercept, y-intercept, a table to list any additional points, and a graph are all essential pieces to this type of problem. In the case of slant asymptotes, we will have to recall our knowledge regarding long division.
There are many key points to pay attention to regarding this problem. Pay special attention to the factoring of the rational function, because that precise factoring will result in the answers of the vertical asymptote, domain, x-intercept(s), and y-intercept. This ultimately affects the graph. Also remember to plug in a 0 for a variable in long division. For example, the equation 5x^3+x would need a 0x^2 in the middle in order to properly use long division to factor out the rational function.

Sunday, September 29, 2013

SV #1: Unit F Concept 10: Real Zeroes and Factorization


This problem is about how to predominantly find the real zeroes and factorization of a fourth-degree polynomial. We are given a polynomial to the fourth degree and are asked to find the possible positive and negative real zeroes as well as utilizing the Descartes Rule of Signs for it. We also must find the p/q answers in order to narrow our options in plugging in numbers for our synthetic division. Once we have a quadratic, we factor it out with mainly the quadratic formula to get our last 2 zeroes.
We must pay special attention to not make any small mistakes along the way. Any mishaps in signs or variables will result in a completely altered answer. Also, it is paramount to simplify our answers as much as possible if possible at all. As long as we follow these guidelines, then evaluating problems like these will be a breeze. Also, make sure to know the quadratic formula in order to find the last 2 zeroes.