f(x)=5x+2x−4x≥6
f(x) = \frac{5x+2}{x-4} \quad x \geq 6
f(x)=x−45x+2x≥6
a.
Find ff(6)ff(6)ff(6)
[2]
b.
State the range of fff.
[1]
c.
Find f−1(x)f^{-1}(x)f−1(x) and state its domain
[3]
Markscheme
3.1.4 Algebra and functions (A-level only) Questions
15 exam-style questions on CCEA A Level Maths 3.1.4 Algebra and functions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.