Online & Text Support
Math 12 Independent Study
Coordinate Geometry
Section 4.2

 

Word List

  
Be sure you fully understand the meanings of the following words. If you need clarification, check these sites or a math dictionary:

Altitude
Angle
Chord
Congruent
Converse
Diameter
Equidistant
Equilateral Isosceles triangle

Line
Line segment
Polygon
Quadrilateral
Radius
Ray
Rhombus
Scalene triangle
 Trapezoid

http://www.mathwords.com/
http://www.teachers.ash.org.au/jeather/maths/dictionary.html dynamic, fun, a little childish
 http://thesaurus.maths.org/ very thorough – provides background
 http://www.infomath.com/html/geometryglossary1.asp glossary of geometry terms

 

Developing Formulas:
 
Use the websites and/or the text to help you understand and use the formulas. Then do the indicated questions from the text and check your answers (see text)
It is highly recommended that you start each section by doing the text support activities first.
 

Assignment Questions page 222 #1,3 (Slope)

Web Support

Text Support

http://www.purplemath.com/modules/slope.htm examine the entire page
http://mathforum.org/cgraph/cslope/ very thorough
http://www.math.com/school/subject2/lessons/S2U4L2GL.html
http://cs.selu.edu/~rbyrd/math/slope/ simple, basic, self test
http://www.explorelearning.com/index.cfm?method=cResource.dspDetail&ResourceID=87 interactive, steps for calculating slope. Click on Launch Gizmo. Click on Exploration Guide for directions if you need them.
http://math.usask.ca/~maclean/101/Review/Printables/BW/Lines.pdf slopes and equations of lines examples


Investigation 3
page 222-223

 

Assignment Questions page 226 #10, 11, 12, 13, 14 (Distance Formula)

Web Support

Text Support

http://www.purplemath.com/modules/distform.htm uses Pythagorean theorem; gives examples
http://www.learner.org/channel/courses/learningmath/geometry/session6/part_c/distance.html from Pythagoras to the distance formula
http://cs.selu.edu/~rbyrd/math/distance/ simple, basic, self test
http://www.explorelearning.com/index.cfm?method=cResource.dspDetail&ResourceID=183
click on Launch Gizmo


Focus C
page 224-226

 

Assignment Questions page 230 #28,29 (Midpoint)

Web Support

Text Support

http://www.purplemath.com/modules/midpoint.htm look at the examples showing how it is used
http://cs.selu.edu/~rbyrd/math/midpoint/ simple, basic, self test
 http://www.mathsnet.net/dynamic/jsp6.html what is meant by midpoint?

Focus C
page 224-226