in the equation of a line: y = mx + b. b gives the y-intercept.

from (1) we know that, for the line k: y = (3b)x + b

from (2) we know that, for the line k: y = 0, when x = -1/3 .....this actually does not give us anymore information that (1) did, we could have figured this out from (1).

we cannot solve for b based on these two statements, there are too many unknowns. therefore, E is the answer