Glossary
Line of Best Fit
A line of best fit is the straight line that passes as closely as possible through a set of plotted points, balancing them above and below. It summarises a linear trend in data and lets us read off a gradient and intercept.
It need not touch every point.
Meaning
A line of best fit is the straight line that passes as closely as possible through a set of plotted points, balancing them above and below. It summarises a linear trend in data and lets us read off a gradient and intercept.
It need not touch every point.
Where it appears in Add Math
You meet Line of Best Fit in the Linear Law 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 Line of Best Fit means but use it fluently in a full solution.
The term in three languages
Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Line of Best Fit (EN) · Garis Lurus Penyuaian Terbaik (BM) · 最佳拟合直线 (中文)
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