Lucy found that a solution of x = - 4 was extraneous for her function. What would be a possible denominator in Lucy's function?

A) x2 + 3x - 4

B) x2 - 9

C) x + 5

D) x - 4

The correct answer for the given question above would be option A. The possible denominator in Lucy's function in which she found that a solution of x = - 4 was extraneous for her function is that, x2 + 3x - 4. For that case, it is the first one since it is the same as (x+4) (x-1) which cannot have x=-4 as that would make the denominator zero.