If ( + k) is a factor of fx), which of the following must be true? f(k) =0
f-k) =0
A root of fx) is x=k.
Ayintercept of fX) is x=-k.

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Write the pair of fractions as a pair of fractions with a common denominator