# Diagonal Line

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I've written about how to add a diagonal line to a scatter plot by using the SGPLOT procedure in SAS 9.2 . The main idea (use the VECTOR statement) is easy enough, but writing a program that handles a line with any slope requires some additional effort.

Both of these examples reveal an important principle. The principle is that the slope of the line on a position-time graph is equal to the velocity of the object. If the object is moving with a velocity of +4 m/s, then the slope of the line will be +4 m/s. If the object is moving with a velocity of -8 m/s, then the slope of the line will be -8 m/s. If the object has a velocity of 0 m/s, then the slope of the line will be 0 m/s.

OAGC members will again host a Membership Outreach project during the Ohio State Fair, July 26 through August 6, 1017. In preparation for the State Fair and in collaboration with the Ohio Department of Natural Resources, we will use our expertise to plant landscape improvements at the Natural Resources Park at the fairgrounds. Everyone is encouraged to join in on the first workday on Monday, May 15 at 9:30 am. Be sure to bring your garden gloves and any hand tools you might need. for more information contact 1st Vice President Suzy Parker at [email protected]