Range

The range of a function is the set of all output values (images) that are actually produced when every object in the domain is used. For $f(x)=x^{2}$ with real inputs, the range is $f(x)\ge 0$.

It is the part of the codomain that is genuinely reached.

You meet Range in the Functions chapter of SPM Additional Mathematics. Knowing the term precisely matters in the exam: questions often hinge on reading a keyword correctly, and because SPM marking is analytic, using the right definition in your working helps secure method marks.

Our teachers make sure a student can not only recite what Range means but use it fluently in a full solution.

Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Range (EN) · Julat (BM) · 值域 (中文)

Other key terms from the Functions chapter you may want to check:

• Function
• Domain
• Codomain
• Object and Image
• Composite Function
• Inverse Function