Check out example codes for "visual basic how to plot points on a graph using the chart". It will help you in understanding the concepts better.

Code Example 1

Imports System.Windows.Forms.DataVisualization.Charting
Public Class Form1
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim scatterChart As New Chart

        'Create the series
        scatterChart.Series.Add(New Series("Property1") With {.ChartType = SeriesChartType.Point, .Color = Color.Green})
        scatterChart.Series.Add(New Series("Property2") With {.ChartType = SeriesChartType.Point, .Color = Color.Green})

        'Set the minimum and maximums
        scatterChart.ChartAreas.Add(New ChartArea)
        scatterChart.ChartAreas(0).AxisX.Minimum = 0
        scatterChart.ChartAreas(0).AxisX.Maximum = 100
        scatterChart.ChartAreas(0).AxisY.Minimum = 0
        scatterChart.ChartAreas(0).AxisY.Maximum = 100

        'Invert the y axis
        scatterChart.ChartAreas(0).AxisY.IsReversed = True

        'Plot the 2 sample data
        scatterChart.Series("Property1").Points.AddXY(50, 25)
        scatterChart.Series("Property2").Points.AddXY(75, 65)

    End Sub
End Class

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