Skip to content

Course home

Inverse and Composite Functions

Inverse and Composite Functions

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394
Question 68

Given that f(x)=3x+1f(x) = 3x + 1f(x)=3x+1 and g(x)=x2g(x) = x^2g(x)=x2

a.

Find fg(x)fg(x)fg(x)

[2]
b.

Work out an expression for gf(x)gf(x)gf(x)

[2]
c.

Solve fg(x)=gf(x)fg(x) = gf(x)fg(x)=gf(x)

[3]
d.

Hence solve fg(x+1)=gf(x+1)fg(x + 1) = gf(x + 1)fg(x+1)=gf(x+1)

[2]
Markscheme

Inverse and Composite Functions Questions

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

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

Question bank