Question: a(n)=4n-25 what is the equation of the inverse function n(a)?
Answer: Since g(a(n))=n g ( a ( n ) ) = n , a−1(n)=n4+254 a - 1 ( n ) = n 4 + 25 4 is the inverse of a(n)=4n−25 a ( n ) = 4 n - 25 .