Compute the intersection points of the two circles K 1 {\displaystyle {}K_{1}} and K 2 {\displaystyle {}K_{2}} , where K 1 {\displaystyle {}K_{1}} has center ( 3 , 4 ) {\displaystyle {}(3,4)} and radius 6 {\displaystyle {}6} and K 2 {\displaystyle {}K_{2}} has center ( − 8 , 1 ) {\displaystyle {}(-8,1)} and radius 7 {\displaystyle {}7} .