Algebra 2H pds 1,2
We began the work on parabolas today. We learned the terms focus and directrix. To find the vertex of a parabola whose equation is in standard form, we use the formula
x = -b/2a. Then, we solve for y.
HW Graph the equations on the worksheet from today's lesson.
EC problem- Graph the parabola -x^2 + 4x - 2.


Geometry H pds 3,5
We started the unit on trigonometry today. We learned about the tangent ratio and solving problems using the calculator. Tangent of an angle = opposite leg/ adjacent leg.
HW textbook page 434 # 1-10 all.
EC problem Find the tangent of 89º, 89.5º, and 89.999º. why do you think the answers are so large?

Trig pd 4
We learned how to graph ordered pairs in rectangular and polar form. The origin is called the pole. We also learned how to convert from polar to rectangular and rectangular to polar form.
HW worksheet # 3,7,9,1,, (on one graph), 15,17, and, #19-39 odds
EC problem- Find 3 other ordered pairs for (-4, -150º)