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. 

D. i think it is the savings