In solving this problem, you want
to work your way down the choices that
you are given for possible answers
to the question. Use the process of
elimination to help you.
Before you begin with your first choice,
be sure you understand the question
and what it is you are suppose to find.
As you look at the graph you are given,
you want to see what you could do to
the graph in order to make the bars
appear longer without changing the
data used to make the graph in the
first place.
Let's look at choice A, where we could
increase the length of the horizontal
axis and then make the bars wider.
We need to make our bars look longer
or taller so working with the horizontal
axis, which is the axis that has the
days of the week, won't help the bars
look taller. They would make the bars
look wider, but not taller. Therefore,
A, isn't a possible answer for this
one.
Choice B has you doubling the length
of the vertical axis and having the
scale go to 60 instead of 30 like it
is. Making the length of the vertical
axis longer won't change the height
of the bars as they will still only
go up to their respective height. Even
if we make the scale to go to 60, the
bars will still only go to where they
need to be, the tallest being 28 tickets.
Choice C tells you to keep the scale
the same and then double the length
of the vertical axis by changing the
units to 1 instead of 2. This means
that on the scale where there is the
number 2, it is now 1, 4 becomes 2,
6 becomes 3, and so on. This means
our bars will have to go taller in
order to get to the number of tickets
they need to. Therefore this option
will double the height of the vertical
axis and still keep the data the same
as to what is shown. This choice will
work, but before we answer this one,
you want to make sure that letter D
doesn't work.
Choice D has you changing the scale
to 10 instead of the 2 that are already
there. This would have all of the bars
become shorter, since 2 would be come
10, 4 becomes 20, so you can see how
the bars will have to move down to
work with this scale.
Using the process of elimination gives
you the answer of Choice C. |
