What do the graphs of the following two equations look like?

    [x^2 + y^2 - 225] *
    [x^2 + y^2 - 10000] *
    [(x - 45)^2 + (y - 35)^2 - 225] *
    [(x + 45)^2 + (y - 35)^2 - 225] = 0

    [y + Sqrt(16 - x^2)] = 0

To find out, you can use the examples:

• Use delegates to pass a method's address to another method in C#
• Plot the equation of a function of two variables in C#

This example uses the PlotFunction method from the first of the previous examples in the following calls:

PlotFunction(gr, F1, -6, -6, 6, 6, dx, dy);
PlotFunction(gr, F2, -6, -6, 6, 6, dx, dy);

Here F1 and F2 are simply methods that return the values of the two functions.