
1) у(2) = 6,4; x=2, значит k = y/x = 6,4/2 = 3,2
2) y(-1/11) = -3; x = - 1/11 then k = y/x = -3 : (-1/11) = -3*(-11) = 33
3) y (-0,7) = 70; x = -0,7 then k = 70/(-0,7) = - 100
4) y(8
) = - 8/9; x = 8 + 5/6 = 48/6 + 5/6 = 53/6
then k = - 8/9 : (53/6) = -8*6/(9*53) = - 16/159