Extra Assignment

http://scallions11precalc.blogspot.com/
There's plenty of lessons, examples, and links to other sites, with new ones being added each day!

extra assignment

http://www.youtube.com/watch?v=D_0vgqi7fU4

http://www.youtube.com/watch?v=HsBF_hG38i8

This video was very helpful on how to graph quadratic functions

bonus assignment! : quadratic formula

http://www.mathwarehouse.com/quadratic/the-quadratic-formula.php



Examples of the quadratic formula to solve an equation

• Example 1
  Quadratic Equation: y = x² + 2x + 1
  • a = 1
  • b = 2
  • c = 1
  Using the quadratic formula to solve this equation just substitute a,b, and c into the general formula:
  
  Below is a picture representing the graph of

  y = x² + 2x + 1 and its solution

  
• this site shows exactly what the quadratic formula does for you. (like finding the x-axis, and how to graph it.)
  

Bonus Marks

http://www.winpossible.com/lessons/Trigonometry_The_Ambiguous_Case.html

Shows how to solve ambiguous cases step by step, also has a video on how to solve them.

Law of Sines

www.en.wikipedia.org/wiki/Law_of_sines

This was very easy and helpful to explain sine law . :)

Review key for test #3

Thanks Jen House for reminding me to post this to the web. I am up to my eyeballs in marking right now so if you need anything just e-mail!

Review key for test #3

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Extra Assignment

http://www.learningincontext.com/Algebra-Web/chapt11.htm

This site basically shows you everything you need to know about quadratic functions. It lists in order how to graph the equation all the way to solving the quadratic equation for roots. It clearly states how to do each step and gives lots of examples. It has everything we learned about quadratic functions so far.

Blog Assignment

http://www.algebralab.org/studyaids/studyaid.aspx?file=trigonometry_lawsines2.xml

This site helped me clarify how to find and solve ambiguous case triangles.

Extra Assignment

http://www.themathpage.com/aprecalc/precalculus.htm

This site covered many different topics including completing the square and finding the roots. Each of the topics comes with lengthy, easy to read instructions and gives plenty of examples.

quadratic equations

www.nipissingu.ca/calculus/tutorials/quadratics.html


this is a site ii found that can help out for quadratic equations

Bonus marks!

http://www.onlinemathlearning.com/graphing-quadratic-equations-2.html

This site helped me out and showed me how to solve quadratic equations by graphing. It had 3 videos that helped me understand the concept as well. It also shows how to identify the vertex, minimum or maximum, x and y intercepts, axis of symmetry and the domain and range.

Quadratic Equations

http://www.mathsrevision.net/gcse/pages.php?page=34

This site helped me solve quadratic equations step by step. I found it very clear and easy to understand.

Graphing Quadratic Functions - Example 1

quadratic functions

Writing Quadratic Functions - YourTeacher.com - Algebra 2 Help

http://www.youtube.com/watch?v=tjroyVI8El4

This youtube video is very helpful in showing every step to graphing a quadratic function. It also shows how to identify the vertex, minimum or maximum, x and y intercepts, axis of symmetry and the domain and range.

Extra Assignment

http://www.wsd1.org/waec/math/applied%20math%20advanced/trigonometry/Sine%20Law/sinelawexamples.htm

This site shows you how to use Sine Law. Gives examples.

http://www.nipissingu.ca/calculus/tutorials/quadratics.html
this is about the quadratic equations. an example:
this was my favorite question on the website, gave a good example of how to do this tough equation :)

Bonus Mark

http://www.1728.com/quadratc.htm

This site is helpful because there are examples. Also there is a calculator that you can put numbers in and it tell you what the answer is suposse to be. It is a very good site.

Questions from lesson 13

Tomorrow, Oct 19, we will be doing questions from lesson 14 and 15 and the review for the test on Wednesday. Questions for Lesson 15 are 1 to 5 and 7&8.

Remember Problem set is due Wednesday and you have your on-line assignment:)

Questions from lesson 13

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Bonus Marks,
http://www.purplemath.com/modules/factquad.htm
This link can show you step by step on how to factor quadratics. This link is very detailed and it should be able to answer anything you need. It has lots of examples and pictures.

Bonus Marks!!!!!!!!!!!!!

http://www.uncwil.edu/courses/mat111hb/pandr/quadratic/quadratic.html

This website has helped me before with understanding what a parabola when i didnt know in the first few days of school, also helped me with formual. And My answer is better then Jens

Extra assignment

http://www.sparknotes.com/math/trigonometry/solvingobliquetriangles/section3.rhtml

this is about how many solutions there are for each kind of triangle, it tells you how to solve eat and it gives examples. It tells you if the angle is acute there are 5 solutions, if it is obtuse there are 3 options.

The Extra Assignment

As if you had not enough to do, I thought I would add another task to your long list of homework.  So here is your assignment:

Over the past 15 lessons we have worked extensively on the Quadratic function, everything from graphing, to the equation, finding the zeros (with and without factoring), etc. Your assignment will be to find an on-line resources that enriches your understanding of any topic we have covered in the first 15 lessons (including ambiguous case trigonometry).  These resources can be a website, a video, an on-line tutorial; like I said, anything that enhances your understanding of the topics we have covered in Pre-Calc 30S.

You must post (do not comment) a link or upload the video the blog with a short but well constructed paragraph on what the topic is and why this resource is helpful.  Be careful though, you can not use the same resource as anyone else.  If two people have the same resource the second person will not get credit for the assignment. It is a race to be the best:)

The assignment is due MONDAY OCTOBER 25 at 5 pm.  Any posts after that time will be not counted as a completed assignment (ouch).

Good Luck and get posting!
Ms. Scallion

Lesson 15 - Graphing with roots and the Vertex

Really you only need two things to graph a quadratic...roots and the vertex. The graph won't be exactly accurate but it will have the general tend of the data, without making a table of values. Easy Peasy:)

Lesson 15

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Lesson 14 - Solving for the Zeros of a function when it can NOT be factored.

I know it says in the notes that you have to memorize the quadratic formula...I lied. It is on your formula sheet:)

Lesson 14

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Lesson 13 Solving for the Zeros of a function by FACTORING

Here are the notes for lesson 13. Some of the lighter text did not scan in very well but I think you'll get the point even without the missing info.

Lesson 13

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Review for Test 2 Answer Key

This is the answer key for the review for Test #2. Remember test and problem set are due on Tuesday:)

Review for Test 2 Answer Key

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Lesson 10 questions

Check out this SlideShare Presentation:

Lesson 10 questions

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Protractors, Rulers and Triangles

I hope that's what you will be dreaming of as you set off into lesson 10.  Just a reminder that you must complete questions 1 to 6 on lesson 10. I am a bit concerned that we rushed the lesson.  So I want to spend half the class tomorrow dedicated to ambiguous case triangles. Do what you can tonight and we'll discuss tomorrow in class.  Yes, the test is still scheduled for Friday:) 

I will put the answer key for the review on the blog tonight so you will have access to it when you are studying for the test. You will get the actual review tomorrow.

Smile and enjoy the Trig:)
Ms Scallion

Lesson 9 oct 6

Class Questions from today Oct 6, 2010.

Lesson 9 oct 6

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Time to Plan Your Life

The life of a Pre-Calc student is never done.  You need to plan your week with highlights on the test date and the problem set #1 due date.

• Monday Oct 4 - No School
• Tuesday Oct 5 - Lesson 9 - the CAST rule
• Wednesday Oct 6 - Lesson 10 - Triangles that are SPECIAL (just like you)
• Thursday Oct 7 - Review Day 
• Friday Oct 8 - Test #2

• Monday Oct 11 - No School - Thanksgiving
• Tuesday Oct 12 - Problem Set #1 Due and Lesson 11and 12 (no Notes, review lesson)
• Wednesday Oct 13 - Lesson 13
• Thursday Oct 14 - Lesson 14
• Friday Oct 15 - I am in the school but not in class so it will be a work period

 So this is your life for the next couple of weeks.  If you are missing a class please make sure that you get the notes ahead of time and check the blog for updates.  Once you are a member of the blog you can post comments and ask questions.  I can answer them here right away or your class mates can respond too.  Might be a good place to look for help on those nasty problem sets:)

Lesson 8 oct 5

Here are the questions from lesson 8 as per the classes request. Enjoy!

Lesson 8 oct 5

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Lesson 7

These are the class questions from Friday Oct 1, 2010. Enjoy!

Lesson 7

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Lesson 6 oct 1

These were the questions from class that were asked about Lesson 6. If you missed Friday you might need some explanation about the chicken scratches I call work!

Lesson 6 oct 1

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Lesson 10 Ambiguous Case Trigonometry

He are the notes for Lesson 10 for Wednesday. We will be drawing the triangles to scale so bring your trusty math set to class. I will have some protractors available in class, but I don't have enough for everyone!

Lesson 10

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The Beginning

Ask and ye shall receive. So here is your class blog.  In order for you to be able to post to the blog you need to send me an e-mail (scallion.kelly@gmail.com) and I will send an invite to join our class blog.  My goal is to put the week's worth of notes up and let you preview them before we do them in class. 

I would also like to get feedback from you folks, on the blog about lessons, what was easy, what was hard, maybe an easier way to do things.  It is your class blog.  I don't want to be the only one working on it!  Please make sure you post here!

Enjoy...let the fun begin:)
Ms. Scallion

Trigonometric Equations

Pre-Calculus 11 Notes for lesson 9

Lesson 9

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