Mathematics 4024 · O Level · Equations of linear graphs

Equations of linear graphs — practice question

A shaded triangle $ABC$ is drawn on a $1$ cm square grid. For the side $AC$, the equation is $y=-\frac{3}{2}x+1$.

(a)[2]

Three inequalities describe the shaded region within triangle $ABC$. One of these is $y \ge -\frac{3}{2}x+1$. Find the other two inequalities.

(b)[2]

Calculate the area enclosed by triangle $ABC$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The vertical restriction is $0\le x<4$.” …