1) the slope can be 1 and 1 or 0 and 1, etc.. => insufficient
2) same as above => insufficient
1)+2) B and K is 1 and 0 or 0 and 1 => one line goes trough the origin with a slope of 1 and the other line is parallel to the x-axis with a slope of zero. the lines intersect in the neg/neg part of the coordinate. both legs are 1 and the hypothenuse is sqrt 2 and the angle is 45.
If your mind can conceive it and your heart can believe it, have faith that you can achieve it.