Welcome to Mr. Rubinstein's Precalculus Wiki!

Link to tutorial videos about the final exam
http://www.showme.com/course/12483

Link to trig tutorial videos
https://screencast-o-matic.com/channels/cQfI6xAs

Link to google drive folder with all handouts throughout the term

Fall Semester
https://drive.google.com/folderview?id=0B3iFVOgNmWbRVmc1WUwzNXdEWW8&usp=sharing

Spring Semester
https://drive.google.com/folderview?id=0B3iFVOgNmWbRVkl6bk1VX3JjTVk&usp=sharing

Math Font
[[math]]
f(x)=x^2
[[math]]
will display as


Tips on syntax for math font can be found, with examples, here

Making graphs on wolframalpha
Go to www.wolframalpha.com
To graph something like y=x(x-2)(x-3) with a window of -15 to 15 on the x axis and -10 to 10 on the y axis, do:

plot y=x(x-2)(x-3), x=-15 to x=15, y=-10 to y=10

to get
pic1.gif

Then right-click and save the picture to your computer (rename it to whatever you want) and click on File, Upload Files.