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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)=2x3+5, 2x2.

Write down the range of f.

[2]
a.

Find an expression for f1(x).

[2]
b.

Write down the domain and range of f1.

[2]
c.

Markscheme

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

11f(x)21     A1A1

 

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

 

[2 marks]

a.

f1(x)=3x52     (M1)A1

[2 marks]

b.

11x21, 2f1(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
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Topic 2—Functions

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