Mathematics 0580 · IGCSE · Gradient of linear graphs

Gradient of linear graphs — practice question

The gradient of the line is 5. $M$ and $N$ are two points on this line. $M$ is at $(x, 8)$ and $N$ is at $(k, 23)$.
(main)[3]

Write $x$ in terms of $k$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Valid rearrangement, for instance $5 = \frac{23-8}{k-x}$” …

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