The line L passes through the point (3,1) and is parallel to the line with equation y={7}/{2}-2 x. Find an equation for the line L.
The straight line L passes through the points (-2,3) and (6,9)
Find an equation of the line that is parallel to L and passes through the point (5,-1) Give your answer in the form a x + b y=c where a, b and c are integers.
The point A has coordinates (0,2)
The point B has coordinates (-4,-1)
(a) Find the coordinates of the midpoint of A B.
(b) Work out the gradient of the line A B.

(c) Find an equation of the line A B.