Linear Relationships

Online

Shodor Interactive: Scatter Plot

http://www.shodor.org/interactivate/activities/ScatterPlot/

The Shodor Interactive: Scatter Plot is a tool for creating simple line graphs. Customizable features include Graph Title, Horizontal and Vertical Axis labels, grids, and plot type (scatter or connected). The settings for the graphing window can be set as well.

Shodor Interactive: GraphIt

http://www.shodor.org/interactivate/activities/Graphit/

GraphIt is a multi-functional tool for graphing and displaying data. The data window allows the user to plot ordered pairs in a standard x,y format. The function tool enables the user to input a function, and choose to Show Tabular Data to display a table with the solutions to the function. From within the Tabular Data window, one can choose to plot the solutions, and the graph on the main page will be updated accordingly, showing points as well as the line drawn through those points.

Holt Learning Online: Online Graphing Calculator

http://my.hrw.com/math06_07/nsmedia/tools/Graph_Calculator/graphCalc.html

An online Graphing Calculator, that can be used to graph up to four equations simultaneously. Standard graphing calculator buttons are available to allow for simple input of an equation, or the equation could be entered manually. A table is provided to find solution sets to a particular equation, or to demonstrate the effects that changes in the independent variable have upon the dependent variable. The graph can also be used to simply plot points on the coordinate plane.

Offline/Local

Microsoft Math (Win)

http://www.microsoft.com/math/default.mspx

Microsoft Math is a very versatile, all-in-one tool. It sports a 2D/3D graphing calculator for graphing equations and functions; a step-by-step math problem solver; a formula and equation library for quick access to commonly used equations and formulas; a triangle solver for exploring the multiple facets of triangles, such as sides and angles; a unit conversion tool; and handwriting support.

OmniGraphSketcher (Mac)

http://www.omnigroup.com/applications/omnigraphsketcher/

OmniGraphSketcher allows users to create simple, yet elegant graphs by simply drawing them, or importing data. Customize the colors and shapes of the lines, label the axes, easily add labels to graph, and export the graph as an image or PDF.