Mastering the fundamental formula of the straight line
In short: Learn how to derive the equation y = mx + c by identifying the gradient and y-intercept from a graph. This guide provides a step-by-step method suitable for GCSE Foundation and Higher students.
The video breaks down the standard equation of a straight line, focusing on how to define and calculate the gradient (m) and the y-intercept (c). It demonstrates how to extract the y-intercept directly from a visual graph and provides a systematic approach to calculating the gradient.
Through worked examples, the tutorial shows how to combine these two components to write a complete linear equation. The method is applicable to maths courses globally.
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Sources
- Summary by Intellect · source: GCSE Maths - How to Find the Equation of a Straight Line (y = mx + c) (2026/27 exams)
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