Determine whether each pair of functions are inverses of each other.
1) f(x)=(5x+4)/(7)
g(x)=(13x-11)/(5)

2) f(x)=x-11
g(x)=x+11

answers:
a. only equations in group 1 are inverses of each other.
b. only equations in group 2 are inverses of each other.
c. equations in both groups 1 and 2 are inverses of each other.
d. none of the equations in group 1 or 2 are inverses of each other.