Mathematics 4024 · O Level · Transformations

Transformations — practice question

On the grid, triangle $A$ and triangle $B$ are shown.
(a)[3]

Describe fully the single transformation that takes triangle $A$ to triangle $B$.

(b)[2]

Draw the reflected image of triangle $A$ in the line $x=-1$.

(c(i))[1]

Triangle $A$ is enlarged from centre $(0,0)$ by scale factor $k$. Triangle $C$ is the resulting image of triangle $A$. One vertex of triangle $C$ has coordinates $(12,3)$. Find the value of $k$.

(c(ii))[2]

Find the coordinates of the remaining two vertices of triangle $C$.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: A rotation of $90^\circ$ clockwise about $(-2,1)$.

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