(a)[1]
Triangle $B$ is obtained from triangle $A$ by reflection in the line $y = -1$. Draw and label triangle $B$ on the diagram.
(b(i))[2]
Triangle $C$ is produced from triangle $A$ by a stretch, stretch factor $2$ with the $y$-axis invariant. Draw and label triangle $C$ on the diagram.
(b(ii))[1]
Find the matrix for the transformation that sends triangle $A$ to triangle $C$.