Name the intersection of line r and plane k

coordinates are (x,y)

so for each point, go across the x axis and up the y axis

for the first point, you go over 1 unit and up one unit so the point is

(1,1)

for the second point, you go over 1 unit, but up 4 units so the point is

(1,4)

for the third point, you go over 5 units and up 1 unit so the point is

(5,1)

so your answer is

B) (1,1), (5,1), and (1,4)