Given x and y are rational numbers, when is |x-y|=|x| - |y| a) this is never true b) this is sometimes true c)this is always true d) this is true when x and y have the same sign

(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0