I have a simple line chart. The x-axis runs from 1-50 and the y-axis runs
from 0-100.

I want to put labels every 5 ticks on the x-axis but I'm baffled on how to
do it. I'd think that setting the axis to 4 ticks between labels would do
it, but I get 4, 9, 14, 19, .... instead of the 5, 10, 15, 20 that I want.

If I try to get the y-axis to cross at 0 so I start the x-axis tick count at
0 I'm told that the number must be between 1 and a large number.

How do you label the x-axis with labels at 5, 10, 15, etc.?

Thanks

Tom