Final answer:
The ratio of the slope of line A to line B is 0.
Step-by-step explanation:
The ratio of the slope of line A to line B can be found by using the formula mA/mB, where mA is the slope of line A and mB is the slope of line B.
To find the slope of a line, we can use the formula m = (y2 - y1) / (x2 - x1). Using the given points, we can calculate the slope for each line:
Line A: mA = (4 - 4) / (2 - 2) = 0
Line B: mB = (1 - 4) / (4 - 2) = -3/2
Therefore, the ratio of the slope of line A to line B is 0 / (-3/2) = 0.