Math 7-3

Direct Variation and Indirect Variation Videos

Direct Variation                               Indirect Variation

ATTENTION!!! TAKE HOME TEST!!!

Good Morning Students! This is just a reminder to complete your take home quiz BEFORE you come to class tomorrow! Remember, the quiz is due Tuesday, January 17, 2012.

 

 

 

Welcome Back! See DILATION videos here!

Click the links below for videos of Dilations.

VIDEO #1            VIDEO #2            VIDEO #3

Answers To the MidTerm Study Guide

Students, Remeber that Midterms will be given on Wednesday, December 21  (5th and 6th Periods) and Thursday, December 22 , 2011 (1st and 2nd Periods).

Here are the answers to the Study Guide. Don't forget to show your work!

1.  -12 1/2

2.  0

3.  17d + 24

4.  8k + 5l + y

5.  h - 6

6.  $30/c

7.  5x + 8

8.  y = -4

9.  m = 60

10.  n = 8

11.  l = 16

12.  x = 75

13.  A number's distance from zero

14.  -6d - 3n + 9

15.  -55

16.  x = 6 yds so: x-1 is 5 yds ; x = 6 yds ; x + 2 = 8 yds

17.  110 ft

18.  Each pair of socks was $2.55.

19. no number 19

20.  h = 6 hrs

21.  x = 6 in

22.  The height of the taller building is 21 = m.

23.  Quadrant II

24.  Quadrant II: (-3,1), (-3,3), (-1,3)

25.  Substitute each x value into the function y = 2x + 3; the ordered pairs are: (0,3), (1,5) and (2,7)

Bring any questions you may have about the study guide to class tomorrow! Study!!

Preview DILATIONS! This is a good chance to be ahead of the class.

Here is an opportunity for student to preview the next element of Transformation which is DILATIONS. CLICK HERE!     FOR VIDEO CLICK HERE!

 

FRIDAY 12/12/2011 UNIT #4 POST-TEST

    Study Guide for Unit #4 is attached. It has bee reviewed in class. Students can obtain any missing information by     Download Unit 4 Study Guide

Unit #5 Parent Letter

Dear Parents,

Below is information regarding Unit 5, Staying in Shape.

Staying in Shape:

Students will be able to:

• Create similar shapes by enlarging or reducing a geometric figure in the coordinate plane.
• Given a figure in the coordinate plane, determine the coordinates resulting from a dilation.
• Describe similarities by listing corresponding parts.
• Find missing side lengths or areas in similar figures.

Vocabulary

Dilation: A type of transformation where a figure’s size is increased or decreased.

 

Ratio: The relationship  of two quantities a and b that are measured in the same unit.

 

Proportion: An equation that equates two ratios.

 

Scale Factor: The ratio of the lengths of two corresponding sides of two similar polygons.

 

Similar Figures: Two figures such that their corresponding angles are congruent and their corresponding sides are proportional. The symbol for “is similar to” is .

 

Congruent Figures: Two figures that have exactly the same size and shape. All pairs of corresponding angles and corresponding sides are congruent. The symbol for “is congruent to” is

Tuesday Night online practice of Translation & Reflections

Click here for TRANSLATIONS!                            Click here for REFLECTIONS!

Tonight students are to exlpore these links and answer the questions associated with each TRANSFORMATION.

Welcome back from your Thanksgiving Break.

Here is a powerpoint introducing TRANSFORMATIONS. Download Transformations Overview Enjoy!

Thanksgiving Break

Stay current on your skills involving Construction. Attached are the steps for Download Construction directions. The only tools you need are a straight edge and a compass. Have fun and enjoy your break.