DPlot

If X[0] determines the DX and x[1] the strating point ? How do i determine two different starting poits for 2 different curves? Because, x[2] and x[3] does not seem to work for the second curve.

Is there a way to plot with our own coordinates ?

Let me precise my question: Is there a way to make 2 different curves on the same plot (graph) with 2 different starting points and different steps (dx)? Because, in VB6 it does not seem to work the same way...