+
Website
Discovery Education

Discovery Education: Web Math: Plots and Geometry

For Students 9th - 10th Standards
This site provides descriptions and helpful hints regarding conic sections - circles, parabolas, ellipses, and hyperbolas. Content also includes interactive problem solvers complete with a full analysis of the math behind the answer.
+
Handout
Math Open Reference

Math Open Reference: Graphical Function Explorer (Gfe)

For Students 9th - 10th Standards
This resource provides a free function grapher. Enter up to 3 equations and plot them. Similar to a graphing calculator.