Algebra 2/Trig
5/16-5/20/16
Mon Block 1, 3, 5 (CAASP ELA)
10.1b Parabola: (x – h)2 = 4p(y – k) (vert) (y – k)2 = 4p(x – h) (horiz)
Explain: Vertex, Focus, Directrix, p (Use Parabola Handout)
Exs: Graph (y – 5)2 = –2(x + 3)
Ex: Write eqn. with vertex at origin, focus at (0, –6) (Draw a picture)
General Form to Standard Form
Ex: x2 + 2x + 2y – 1 = 0 by Completing the Square
Since Block, start to go over some problems last part of class (keep track so
as not to repeat on next class)
Tue
Wed
Thu
Fri
HW: P 783: 64, 67, 70, 71-74, 76, 85, 87, 89
Block 2, 4, 6 (CAASP ELA)
Same plans as Monday
HW: Same as Monday
10.2a Ellipses: Explain defn. (sum of distances to foci)
Use ellipse handout to explain equations, vertices, foci, major/minor axes
and c2 = a2 – b2 (vertical/horiz depends on where a is)
Ex: Find ellipse w/ major axis 10, foci at (4,7) and (-2, 7) (Draw a picture)
Ex: 4(x – 3)2 + (y + 4)2 = 36 Graph, find foci
HW: P 792: 10-27 E.O.P
Block 1, 3, 5 (CAASP ELA)
10.2b Ellipses into standard form
Ex: x2 + 4y2 + 6x – 8y + 9 = 0 Why not a circle? Convert.
Mention eccentricity e = c/a. Look at pictures pg. 791
Since Block, start to go over some problems last part of class (keep track so
as not to repeat on next class)
HW: P 793: 29, 31, 35-42 (part (a) only)
Block 2, 4, 6 (CAASP ELA)
Same plans as Thursday
HW: Same as Thursday