VB.NET ช่วยดู Code สร้างกราฟให้หน่อยครับ จะทำยังไงให้มันแสดงค่าตามที่ต้องการ

Imports System.Windows.Forms.DataVisualization.Charting

Public Class Form1

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        Dim myChart As New Chart
        Dim myData As New List(Of Point)

        myData.Add(New Point(3, 0.4))
        myData.Add(New Point(5, 5.6))
        myData.Add(New Point(7, 7.9))

        myChart.DataSource = myData

        Dim myChartArea As New ChartArea
        myChartArea.Name = "chartArea"
        myChart.ChartAreas.Add(myChartArea)

        myChart.Series.Clear()

        Dim mySeries As New Series
        mySeries.XValueMember = "X"
        mySeries.YValueMembers = "Y"
        mySeries.ChartArea = "chartArea"

        myChart.Series.Add(mySeries)

        Me.Controls.Add(myChart)
        myChart.Dock = DockStyle.Fill

    End Sub

End Class