[填空题]
The equation of the l4 am/ev k.hta/oj0 z3g/zak(iucnk+ n +t5 maj1)hm: qine $L_1$ is 3y−x−5=0. The line $L_1$ is shown on the diagram below.
The point K has coordinates(4,3). The point T has coordinates (2,−3). The point M is the midpoint of [TK].
1.lculate the coordinates of the point M. (a,b) a= b=
2.Show that the point K lies on the line $L_1$.
3.lculate the length of [TK]. TK ≈
The line $L_2$ passes through the point M and is perpendicular to $L_1$.
4.Find the gradient of the line $L_2$. gradients is
5.Find the equation of $L_2$. Give your answer in the form ax+by+d=0, where a,b and d are integers.
The point N is the intersection of $L_1$ and $L_2$. ax+by+c=0 a = b = c =
6.lculate the coordinates of N. (a,b) a= b=
