(2) The analytical formula of 2)BD is Y=7/6X-7. Analytical method: When y=0, x is equal to 2,6, A (2 2,0) and B (6 6,0) respectively. Let the straight BD equation y=kx+b, so k=-b/6. Point D from the meaning of the question and the linear equation is
I hope I did the right thing. I haven't done it for a long time. Senior three is boring.