User interface language: English | Español

Date May 2017 Marks available 2 Reference code 17M.1.AHL.TZ2.H_2
Level Additional Higher Level Paper Paper 1 Time zone Time zone 2
Command term Write down Question number H_2 Adapted from N/A

Question

The function f is defined by f ( x ) = 2 x 3 + 5 ,   2 x 2 .

Write down the range of f .

[2]
a.

Find an expression for f 1 ( x ) .

[2]
b.

Write down the domain and range of f 1 .

[2]
c.

Markscheme

* This question is from an exam for a previous syllabus, and may contain minor differences in marking or structure.

11 f ( x ) 21      A1A1

 

Note:     A1 for correct end points, A1 for correct inequalities.

 

[2 marks]

a.

f 1 ( x ) = x 5 2 3      (M1)A1

[2 marks]

b.

11 x 21 ,   2 f 1 ( x ) 2      A1A1

[2 marks]

c.

Examiners report

[N/A]
a.
[N/A]
b.
[N/A]
c.

Syllabus sections

Topic 2—Functions » SL 2.2—Functions, notation domain, range and inverse as reflection
Show 123 related questions
Topic 2—Functions

View options