函数比例图

我正在尝试制作一个Windows窗体应用程序,它将显示函数图。

我如何拉伸图表,使其更偏向侧面?

  private void Graphs_Paint(object sender, PaintEventArgs e)
    {
        e.Graphics.DrawLine(new Pen(Color.Black), 0, ClientSize.Height / 2, ClientSize.Width, ClientSize.Height / 2);
        e.Graphics.DrawLine(new Pen(Color.Black), ClientSize.Width / 2, 0, ClientSize.Width / 2, ClientSize.Height);
        for (double x = -100; x < 100; x += 0.1)
        {
            double y = x * x * -1;
            //y = x * -1;   
            //y = Math.Sqrt(x) * -1;
            //y = 1 / x;
            try
            {
                e.Graphics.FillEllipse(new SolidBrush(Color.Red), (ClientSize.Width / 2) - 5 + Convert.ToInt32(x), (ClientSize.Height / 2) - 5 + Convert.ToInt32(y), 10, 10);

            }
            catch (Exception)
            {
            
            }
        }
    }