See video and instructions here.
This video will go over how to find all the zeroes, real and imaginary, from a given polynomial of a fourth or fifth degree. I will also go over previous concepts used to find the possible real zeroes as well as how many possible positive and negative zeroes there are going to be. We will also be reviewing the quadratic formula as well as synthetic division.
Be sure to pay attention to how many possible positive and negative zeroes there will be because in some cases there maybe be no positive and only negative or vice-versa. Also make sure to pay attention to the synthetic division because it can get confusing at times and sometime multiply or subtract incorrectly. Lastly, make sure you use the quadratic formula correctly or else your zero will be incorrect.
Sunday, September 29, 2013
Tuesday, September 17, 2013
SP #2: Unit E Concept 7: Graphing Polynomials
This equation will display how to graph a polynomial and how to graph it. In order to graph the polynomial, you need to factor the equation and determine the end behavior to get an idea of which way the graph goes. Also, finding the y-intercept, minimum and maximum will help to graph a more accurate graph.
Make sure to pay attention to the multiplicity of the zeroes because they will determine whether the graph will go through the x-axis, bounce off the x-axis, or curve onto the x-axis. Also be sure you have the correct zeroes as well as the correct amount of zeroes.
Sunday, September 15, 2013
WPP #4: Unit E Concept 4: Quadratic Applications
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Tuesday, September 10, 2013
WPP #3: Unit E Concept 2: Quadratic Applications
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Monday, September 9, 2013
SP#1: Unit E Concept 1: Identifying x-intercepts, y-intercepts, vertex, axis of quadratics and graphing them.
This problem will display an equation and and will display how to factor it and turn the factored answer into a parent graph. Also, once you have the parent graph equation, you find the vertex, y-intercept, and axis. To find the vertex, you look at the h and k of the parent graph equation. To find the y-intercept, set all the x's of the parent graph equation to zero then solve. To find the axis, look at the h of the equation and that will be your answer. Lastly, to find the x-intercept(s), you solve the factored equation-not the parent graph equation- and you will end up with two answers. Those answers will be your x-intercept(s).
Be sure to pay attention to which equation is which; in this case be sure to tell which is the factored equation and which is the parent graph equation. Also, remember that the parent graph equation is f(x)=a(x-h)^2+k. Lastly, remember that if you square root a positive, the outcome will have a +- result.
Monday, September 2, 2013
WPP #2: Unit A Concept 7
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WPP #1: Unit A Concept 6
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