I am sure this is probably something really easy, but for the life of me I
can't seem to figure it out. I tick marks on the y axis from 0 to mark 260
and 420. The biggest that I would need is 600, but I must have the 260 and
420 marked. How do I do that? I tried to change the minor/major things, but
that didn't work out. I am trying to chart my peak flow readings for my
asthma, and the 420 and 260 designate the zone lines of how bad my asthma is.
Thanks in advance! ")