Saturday, September 28, 2013

SV #1: Unit F Concept 10: 4th and 5th Degree Polynomials

Hello this Omar T. from period 5.
          This video will be going over a 4th degree polynomial problem by finding the zeros. Each step is essential to finding the zeros of the problem. The instructions also call for any additional values you may find during the problem.
          Watch for the cues during the video that will help you solve the problem. These cues will point out any important details or steps in order to work out that specific step of the problem. Also note that the various steps taken provide necessary answers that may be asked for in other questions.

IMPORTANT NOTE: There is a mistake on the last step. The complete factorization with the radicals should have a 10x because you multiply the x by what you are dividing it by. It should look like this.

Monday, September 16, 2013

SP#2: Unit E Concept 7: Graphing Polynomials, Identifying All Parts

     This problem is graphing a polynomial function when given a set of zeros. In this case, the zeros given were -1,-1, 1, and 3. From there, the polynomial function had to be found and then the end behavior and y-intercept. Finally, with the help of a graphing calculator, an accurate graph can be drawn using the information we solved for. The amount of steps in this problem is 5.
      There are several things to pay attention to when following this program. Each step has a colored dot that corresponds to a list at the bottom of the image with brief explanations on each step. The amount of zeros automatically tells us which degree this polynomial will be in (the 4th). Another thing to look out for is to pay attention to the zeros first because that is what we are technically starting with. 

Monday, September 9, 2013

WPP#3: Unit E Concept 2: Identifying parts of a Quadratic Application

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SP#1: Unit E Concept 1: Identifying parts of a Quadratic

     This picture illustrates the steps to finding the many parts of a quadratic function. The Parent Function, vertex, y-intercept, x- intercept, and axis must be found.The steps will show how to solve the problem and the answers are listed to the right. Arrows point to the different parts of the graph that is in the question.
   There are several things to look for in this problem. One is that this quadratic will be facing downwards because of the negative (a) value. Another important factor here is that this quadratic cannot be graphed because it has imaginary numbers as x-intercepts. This graph does not have an imaginary number scale and cannot be used to graph this quadratic.