Mathematics 0580 · IGCSE · Equations of linear graphs

Equations of linear graphs — practice question

The straight line $l$ is drawn passing through $(0,3)$ and $(4,11)$.

(a)[3]

Determine the equation of line $l$ in the form $y = mx + c$.

(b)[1]

Since line $p$ is perpendicular to line $l$, state the gradient of line $p$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The gradient is $=\frac{11-3}{4-0}$” …