Saturday, January 30, 2016

videos 5.5 to 5.8


5.5 , solve by graphing…

How to find the zeros of a function with a graphing calculator. 

 

https://www.youtube.com/watch?v=RxA8YMRF4M4 

 

even though this example does not show a quadratic function, the steps are the exact same... 

 

 

 

Videos 5.6

A.      Video on the square root of negative numbers.  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-558s.html

B.      Video on Simplifying imaginary numbers  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-559s.html

C.      Adding complex numbers. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-560s.html

D.      Multiplying complex numbers (video) http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-561s.html

E.       Finding complex solutions (video) http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-562s.html

 

check point quiz 2 on p276. Check your answers to quiz on this link >> https://skydrive.live.com/redir?resid=DD862520A086A24F!325&authkey=!AC5NtGOZI8aa-A0

 

5.7 A… Completing the square  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-296s.html

 

5.7B… Completing the square when "a" is different than 1. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-297s.html 

 

Videos 5.8

A.      Using quadratic formula.  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-298s.html 

B.      Using quadratic formula to find complex solutions.  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-564s.html