Because a line plot is built on a number line, you need to follow the rules for number lines discussed earlier in the document. In Unit 6, 22.214.171.124 For kindergarten through grade 3, it says:
"The number line must be shown as a tactile graphic. The axis line, coordinate marker, and line segments should be raised tactile lines; only the labels should be brailled."
So yes, as Crepe Myretle also indicated, it must be [u]drawn[/u] for grades K-3. That is, the number line will have to be done as tactile lines rather than braille cells.
Hope this clarifies things for you ...