\begin{tikzpicture} \tkzSetUpPoint[shape = cross out, color=blue] \tkzInit[xmax=100,xstep=20,ymax=.5] \tkzDefPoint(20,1){A} \tkzDefPoint(80,0){B} \tkzDrawLine(A,B) \tkzDrawPoints(A,B) \end{tikzpicture}