[填空题]
A small town is planning the construction of a new road. The new roa wh*ob0yr6mqzny::nai 92.vc d will pass h2con96 :n ya:zym*rbiqw .0v q+ifnkd-0ka7 mk+ x7o robo/l:f+jp *id2 :g ythrough the point A(0,5) and will be perpendicular to the road connecting the points B(3,0) and C(6,6). This information is shownkdbffid +/km7n+gr2lo piq:a*- ko : xy0 7+oj in the following diagram.
1.Find the gradient of the line through points B and C. $m_{BC}$ =
2.Hence, state the gradient of the line through points A and D. $m_{AD}$ =
3.Find the equation of the line through A and D. Give your answer in the form y=mx+c. m = c =
4.Point D lies on the x-axis. Find the coordinates of point D. (a,b) a= b=
