Good morning everyone! Precalculus…I sometimes think it is even harder than Calculus because of the way you jump from one chapter to the next completely unrelated chapter. At least with Calculus it continuously builds on itself throughout the whole year!

 

I have students in both Regular Precalc and Honors Precalc so I will include videos for both (since they move at a different pace those students are very rarely learning the same thing at the same time of year).

 

My Regular Precalc students are wrapping up their unit on sketching trig graphs (sin, cos, tan, csc, sec, cot). That’s all of those “fun” equations with amplitude, period, shifting, etc! Here are two videos. The first demonstrates a sine graph and the second is tangent. In my opinion, tangent graphs are the trickiest because they are sketched much differently than all of the other graphs.

 

Here’s the sin graph…

 

And here’s the tan graph…

 

 

My Honors Precalc students are in the middle of logarithms and exponential functions. This video has three examples of solving these types of equations…

 

 

Check back again next Tuesday for some more Precalculus! Tomorrow we will take on Advanced Algebra Trig!!