Skip to content

Course home

Question bank·Inverse and Composite Functions
Sign up

Inverse and Composite Functions

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
Question 50

The function f f\,f is defined such that

f(x)=5x+3 f(x) = 5x + 3 f(x)=5x+3
a.

Find f−1(x)f^{-1}(x)f−1(x)

[2]
b.

The function g g\,g is defined such that g(x)=kx3g(x) = kx^3g(x)=kx3 where k k\,k is a constant. Given that fg(−2)=23fg(-2) = 23fg(−2)=23, work out the value of kkk.

[2]
Markscheme

Inverse and Composite Functions Questions

  1. GCSE
  2. /Maths
  3. /Inverse and Composite Functions

135 exam-style questions on AQA GCSE Maths Inverse and Composite Functions. Each one has a worked solution and a mark scheme showing where the marks go.

More questions