Page 4 - Focus SPM 2022 - Additional Mathematics

Chapter Learning Area : Algebra
Form 4
1 Functions

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KEYWORDS

• Absolute value function – Fungsi
nilai mutlak
• Arrow diagram – Gambar rajah
anak panah
• Composite function – Fungsi
gubahan
• Domain – Domain
• Function – Fungsi
• Function notation – Tatatanda
fungsi
• Horizontal line test – Ujian garis
mengufuk
• Image – Imej
• Inverse function – Fungsi songsang
Concept • Object – Objek
Map • Range – Julat
• Relation – Hubungan
• Vertical line test – Ujian garis
mencancang

Many natural and daily phenomena involve relationships between two variables. A function is a
special type of relationship such that the value of a variable is dependent on the value(s) of

• The height of a tree in a forest depends on variable such as the amount of sunlight received.
• The body mass of a person depends on many variables such as age, gender, height, diet,
one or more variable(s).
• The hourly salary of an employee depends on variable such as the number of working hours

activities and so on.

What are the other examples of functions in our daily lives?
of the employee.

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