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Date November 2016 Marks available 2 Reference code 16N.1.AHL.TZ0.H_3
Level Additional Higher Level Paper Paper 1 Time zone Time zone 0
Command term Find Question number H_3 Adapted from N/A

Question

A rational function is defined by f(x)=a+bxc where the parameters a, b, cZ and xR{c}. The following diagram represents the graph of y=f(x).

N16/5/MATHL/HP1/ENG/TZ0/03

Using the information on the graph,

state the value of a and the value of c;

[2]
a.

find the value of b.

[2]
b.

Markscheme

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

a=1    A1

c=3    A1

[2 marks]

a.

use the coordinates of (1, 0) on the graph     M1

f(1)=01+b13=0b=2    A1

[2 marks]

b.

Examiners report

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

Syllabus sections

Topic 2—Functions » SL 2.2—Functions, notation domain, range and inverse as reflection
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Topic 2—Functions » SL 2.4—Key features of graphs, intersections using technology
Topic 2—Functions

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