Graphing a data point within a range of numbers

I have a range of values 1 through 100, and my actual result is 77. I am trying to create a graph in excel that shows a line from 1 to 77, and stops at 77. Can anyone point me in the right direction?

Basically, I am not creating a dynamic 2-dimensional X and Y axis chart, I am simply creating a 1-dimensional line graph, and need some help. I am hoping there is a simple answer.

Thank you