a feature that an organism inherited from his ancestor but that is now less elaborate and functional than in the ancestor​

the denominator has a very specific role.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

i think its y= -4x-14