To draw a red dashed line between two points A(40,17) and B(12,-3) in Matlab, the following expression will do the job:

a. line ([40 -3] ,[ 17 12], 'color', 'r', 'linestyle', '-')

b. line ([40 12],[17 -3] color',r";linestyle', '--')

c. line ([17 -3],[40 12] color',r",linestyle', --)

d. line ([40 17],[12 -3] color',r";linestyle', '--')