Question

If (x + k) is a factor of f(x), which of the following must be true? f(k) = 0 f(–k) = 0 A root of f(x) is x = k. A y intercept of f(x) is x = –k.

Answer 1

f(-k) = 0 is true

Answer 2

f(x) = g(x)(x + k) = 0 then one root is x = -k

Answer 3

Thank you so much. Thats what I thought