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

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Find the missing factor. write your answer inexponential form.9^2=9^4×