Licensed Electrical & Mechanical Engineer BMayer@ChabotCollege.edu Mathematics 55 Making Good Graphs Bruce Mayer, PE Licensed Electrical & Mechanical Engineer BMayer@ChabotCollege.edu

Making Good Plots           Arrows in POSITIVE Direction Only Label x & y axes on POSITIVE ends Only Mark and label at least one unit on each axis Use a ruler for Axes & Straight-Lines Label significant points or quantities

Example  Graph AbsVal Observation about: Neither of these Functions can EVER be NEGATIVE Therefore their graphs will NEVER Extend into the BOTTOM half of the XY plane Can NOT simply IGNORE the AbsVal Bars to Plot Lines:

Example  Graph AbsVal Need to Graph When in Doubt: T-Table Then PLOT (x, y) Points and Connect the Dots to Construct the Graphs Plot on Bd using PPT Grid