Geometry assignment; May 29

We spent time reviewing line equations and the midpoint formula before going over our homework today.  The bulk of the time was spent working on a review sheet for tomorrow's test.  The answers to the review assignment appear below.  Test on Chapters 13-14 tomorrow.

Assignment:  study the review guide;  Review assignment
Transformations packet

Page 567  #1-9 all, 15-23 all


1.  XY = 4 radical 5;  YZ = 10;  XZ = 2 radical 5
2.  XY squared + XZ squared = 80 + 20 = 100 = YZ squared
3.  center (-3, 0);  radius = 10
4.  center (5, -1);  radius = 7
5.  (x + 6)squared + (y + 1)squared = 9
6.  -1/4
7.  -19
8.  examples:  (1, 3), (2, 8), (-1, -7)
9.  0
15.  (4, -3/2)
16.  (-1, 0)
17.  (0, b)
18.  (-11, 11)
19.  line on graph passes through (0, -3) and (2, 1)
20.  line on graph passes through (4, 0) and (0, 2)
21.  (2, 1)    used elimination process on two equations in 19 and 20
22.  y = 4x + 7
23.  y = 2x + 4


Translations Rules
7.  T (2, -1)
8.  T (-1, 1)
9.  T (1, 0)
10.  T (1, -3)
11.  T (-2, -1)
12.  T (0, 4)

Reflections Rules
7.  R (over y = 2)
8.  R (over y = -x)
9.  R (over x-axis)
10.  R (over x = -3)
11.  R (over y-axis)
12.  R (over y = x)

Rotations Rules
11.  Ro (90 degrees clockwise)  or 270 degrees counterclockwise
12.  Ro (180 degrees clockwise)    or 180 counterclockwise
13.  Ro (180 degrees clockwise)  or 180 counterclockwise
14.  Ro (180 degrees clockwise)  or 180 counterclockwise

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