This browser-based calculator provides a platform for users to perform calculations , share, and create interactive Whiteboard resources. Choose from Cartesian or polar grids, select angle measurement in degrees or radians, and use the embedded keyboard to enter equations. You can zoom in or out, drag a graph onto the page, and change axes. View multiple graphs on one grid and select color coding. Parabolic graphs can be viewed in standard, vertex, or intercept form. The platform also supports conic sections, Fourier expansions, Taylor expansions, and polar graphing. When you're finished, you can publish your resource or embed the file into a blog or other virtual learning environment.

This resource was developed by Desmos, Inc., a free web-based platform for creating, sharing, and publishing interactive lessons based on Whiteboard technology.

6-8: 9B/M3. Graphs can show a variety of possible relationships between two variables. As one variable increases uniformly, the other may do one of the following: increase or decrease steadily, increase or decrease faster and faster, get closer and closer to some limiting value, reach some intermediate maximum or minimum, alternately increase and decrease, increase or decrease in steps, or do something different from any of these.

9-12: 9B/H2a. Symbolic statements can be manipulated by rules of mathematical logic to produce other statements of the same relationship, which may show some interesting aspect more clearly.

9-12: 9B/H2b. Symbolic statements can be combined to look for values of variables that will satisfy all of them at the same time.

9-12: 9B/H4. Tables, graphs, and symbols are alternative ways of representing data and relationships that can be translated from one to another.

9-12: 9B/H5. When a relationship is represented in symbols, numbers can be substituted for all but one of the symbols and the possible value of the remaining symbol computed. Sometimes the relationship may be satisfied by one value, sometimes by more than one, and sometimes not at all.

12. Habits of Mind

12B. Computation and Estimation

9-12: 12B/H5. Compare data for two groups by representing their averages and spreads graphically.

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