Math Grapher is a simple app for generating graphs of math functions for visualization and problem solving. In addition to plotting a function, Math Grapher will also allow you to calculate key values of a function including zeros (x intercepts), minima and maxima, by simply tapping or clicking near these features on the graph.
Math Grapher also allows you to save an image of any graph you've plotted. You can share these images directly from the app by sending them to email or other applications that support sharing in Windows.
Math Grapher also supports plotting multiple graphs at a time in 5 different colors.