where m is slope and b is the y intercept. The definition of a parallel line graphically speaking is another line of the same slope that intersects another point on the graph. Therefore, the slope of a parallel line is -1/5.
Set it up kind of like a picket fence. Put 149 g over one cm and multiply that by 1kg over 1000g then multiply that by 1 cm over .01 m. The answer is 14.9 kg/m
