41.   Keep the boat in a straight line.

42.   ...point T, where the demand curve is tangential to the straight line L.

43.   I drew a straight line down the page to separate the two lists.

44.   Plotting log vs. log should produce a straight line graph.

45.   There is a frequent absence of straight lines between the two periods, however.

46.   Great circle routes plot as straight lines on some map projections such as the Gnomonic.

47.   The lines of longitude are straight lines converging on the north pole while the lines of latitude are shown as circles.

48.   If more than two sets of x, y coordinates are given then each pair in the sequence will be joined by a straight line.

49.   For example, the number of points needed to define a straight line is two.

50.   Depreciation is provided on all property, plant and equipment on a straight line basis, taking into account residual values.