Margins within the graph area.
Click the Set Graph Area button on the Graph
Tools toolbar to adjust the space between the edge of the plotting
area (i.e., the borders of the graph window) and any graph components
or custom graphic objects. This can be accomplished by clicking the
button and either
1) dragging the resizing squares that appear around the edges of the graph
window or 2) drawing a rectangle in the place where you want the graph
to be.
Note that you can also adjust margins on the Document
Size and Scaling dialog (accessible by clicking the Adjust
the Graph Actual Size/Scaling button).
Printout margins. The printout margins (the width of the distance between the edge of the paper and the beginning of the graph area) can be adjusted in the Print Preview dialog (accessed from the File menu).