Which answer best describes what the efc amount is

Answer

An EFC amount is the measure of the financial strength of a student’s family according to the formula placed by the law.

Explanation

When a student meets the required eligibility criteria for federal student aid, his or her eligibility is dependent on his or her Expected Family Contribution, year in school, status of the enrollment and cost of attending the school. Colleges that a student list in the free application for federal student aid form will utilize information mentioned above to calculate the aid. The EFC is not the amount a family has to pay for college nor the funds in total that the student will receive. It is simply a number used by the career institution to find the amount of federal student aid the student is eligible to get.

to answer your question:

f(x)= a^x.  if x=0, f(x)=1  if x=1, f(x)=a  if x=1, f(x)=a^a