I need to draw below points on line chart.
But when I drawing chart on line. It's X axis all points showing 10.8. What is problems?
I think that you are using Label chart widget. Label chart will regard X axis as string instead of number.
Seem cannot display a line paralle with Y axis.
But you can try with below link
or draw an line that paralle with X axis by changing data of X axis and Y axis.
Should you have any cocnern, please feel free to le me know.