Question 8061
ok...the line required...you know nothing about it at all directly. You need to know its gradient and a point on the line. So.


1. find its gradient by finding the gradient of the line through the 2 given points. Once found, you know the gradient of the perpendicular line (don't you?).


2. find the point... it is the mid-point between the 2 given points, so figure that out.


3. find c from y=mx+c


4. you have your answer


jon.