\begin{tikzpicture}[scale=.5] \coordinate (p) at (-2,0); \coordinate (q) at (2,0); \coordinate (w2) at (1,1); \coordinate (w3) at (-2,2.5); \tkzDefPoint(0,-1){c1} \tkzDefPoint(0,1){c2} \draw (-4,0)--(4,0); \draw[dashed,blue] (0,-4)--(0,4); \tkzDrawCircle[thin](c1,p) \tkzDrawCircle[thin](c2,p) \typeIIcline[dashed,color=blue]{p}{q}{w2}; \typeIIcline[dashed,color=blue]{p}{q}{w3}; \tkzDrawPoints[fill=red](p,q) \tkzLabelPoint[below left](p){\(p\)} \tkzLabelPoint[below right](q){\(q\)} \end{tikzpicture}