March 3, 2010: Quiz Day! (Again..)

Today started off with a nice warm up involving the graphing of tan functions... by hand. I don't know if anyone else knew this little trick we learned in class, but I just learned it this period & personally, it's demystified a lot of the stigma of graphing tangent functions:

1. Take the simple equation of:

Substitute in your own equation (whatever is in the parentheses, simplified).
2. Solve for x.
3. The equation now gives you two asymptotes of the function. By plotting the intercept directly between these two asymptotes, you've gotten yourself a period! Yay! Just repeat for more periods.

EXAMPLE:

Simplified:

*Remember that the order of operations are switched!*
1. Write your inequality using your simplified equation.



2. Solve for x.





3. Graph!


Ta-Da!

Then, we moved on to some review of the homework, & that went pretty smoothly. We covered 23, 43, & 75.

Afterward, we began a new section of trig.. INVERSE TRIG FUNCTIONS.
Here's an example:





Basically, that's how you would work through having an inverse trig function.. We didn't really get that far, unfortunately, because we had to go to lunch & then we had a quiz to take, so I can't really write much more :[ Speaking of, the quiz went all right, but there were a couple of tricky problems that I really had to think through. Did anyone else struggle with a problem or two?

No homework tonight, but it'd be smart to look over the project!! Next scribe is Anna. <3