ListPlot[
{ {- 3 Pi/2,?},{- 5 Pi/4,?},{- Pi,?},{- 3 Pi/4,?},
{- Pi/2,?},{- Pi/4,?},{0,?},{Pi/4,?},{Pi/2,?},
{3 Pi/4,?},{Pi,?},{5 Pi/4,?},{3 Pi/2,?} },
Prolog->AbsolutePointSize[5],
Background->GrayLevel[0.9],
AxesLabel->{x, y},
PlotStyle->{Hue[0.7]}
];
Return to
coordinate grid page:
http://www.uta.edu/math/Calculus/secant.html
or to Lab I.2:
http://www.uta.edu/math/Calculus/calc1-lab2.html.