Mathematics 0580 · IGCSE · Equations of linear graphs

Equations of linear graphs — practice question

(a)[3]

Find the equation of the line joining $A$ and $B$. Write your answer in the form $y = mx + c$.

(b)[1]

Find the gradient of a line perpendicular to $CD$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$m=\frac{31-16}{8-3}$” …

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