Which of the following function pairs are inverses?

a. f(x)=7x+1 and g(x)=7x−1

b. f(x)=−4x and g(x)=1/4x

c. f(x)=2x−3 and g(x)=x+3/2​

d. f(x)=x²−9 and g(x)=x+3

Q&A Education