Ships at sea locate their positions using the Long Range Navigation system known as LORAN. In this system, a master station sends signals that can be received by ships at sea. To fix the position of a particular … See the whole entry
The population in California was 33,871,648 in January 2000, and 37,253,856 in January 2014. Predict California’s population in the year 2020.
The population in Sebastopol, California was 7,774 in January 2000, and 7,598 in January 2013. … See the whole entry
This problem is a continuation of Problem 60, Section 15.2. A player’s batting average really isn’t simply the ratio h/a . It is the value of h/a rounded to the nearest thousandth. It is possible that a batting … See the whole entry
Videos:
Functions (time: 9:33)
Function notation (time: 5:29)
… See the whole entry
Videos:
This video provides a nice introduction to the conic sections (time: 0:51)
Constructing a parabolic reflector using a satellite dish (time: 10:59)
… See the whole entry
Video:
Graphing linear inequalities in two variables. The first minute tells you everything you need to know; the next nine minutes provide some examples. (time: 10:04)
… See the whole entry
Videos:
The Cartesian Plane – this is an excellent introduction (time: 3:11)
Graph a line by plotting points (time: 7:59)
Graph a line using the slope and intercept (time: 7:16)
… See the whole entry
This site provides an elementary discussion of functions.
http://www.algebralab.org/lessons/lesson.aspx?file=Algebra_FunctionsRelationsIntro.xml… See the whole entry
A nice overview of the conic sections can be found at this site:
http://www.mathacademy.com/pr/prime/articles/concis/index.asp
This is a great interactive site for graphing conic sections.
In order to use this graphing tool, you need to write the equation in the form… See the whole entry
Here is a good site for graphing equations of the form “y =”.
http://www.calculator.com/graphing/
This is a general site for graphing lines, parabolas, and exponentials.
https://www.desmos.com/calculator